Roman engineers built the Aqueduct of Segovia from granite blocks without a drop of mortar, and it still stands nearly 2,000 years later, striding 28 metres above a square where buses turn and people sit down for lunch. Spain is full of that kind of continuity: Roman bridges still carry traffic in Mérida and Córdoba, a Roman lighthouse still guides ships into A Coruña, and you can walk the full circuit of the Roman walls of Lugo for free.
The Roman heritage is the headline. Mérida has the best-preserved Roman theatre in the country and still stages plays in it every summer, Tarragona has an amphitheatre on the edge of the Mediterranean, and Itálica outside Seville was the birthplace of the emperor Trajan.
Then go back much further and forward again. The bison painted on the ceiling of the Cave of Altamira are among the finest prehistoric art anywhere, the Antequera dolmens are older than Stonehenge, and at Madinat al-Zahra the ruins of a 10th-century caliph’s palace-city spread across a hillside outside Córdoba.
At a Glance#
- The Roman big three: the Aqueduct of Segovia, the theatre and amphitheatre of Mérida and the seafront ruins of Tarraco in Tarragona, all UNESCO-listed.
- Andalusia’s ruins: Roman Itálica near Seville, the caliph’s city of Madinat al-Zahra near Córdoba and the beach town of Baelo Claudia.
- Prehistory: the painted caves of Altamira and El Castillo in Cantabria, the dolmens of Antequera and the human fossils of Atapuerca near Burgos.
- The north: the walls of Lugo, the Tower of Hercules lighthouse, the gold-mine landscape of Las Médulas and the Greek and Roman port of Empúries.
- Walled towns: medieval Ávila, Cáceres and Toledo, best seen on foot in a day each.
- Costs: many sites are free or a few euros; Andalusia’s state-run sites are free for EU citizens.
- Best season: March to June and September to November; in July and August visit at opening time, before the heat.
Segovia#
The Aqueduct of Segovia is the most complete Roman structure in Spain and the easiest to see: it is free, open day and night, and stands in the Plaza del Azoguejo at the entrance to the old town. Built around the end of the 1st century AD, it brought water from the Sierra de Guadarrama, and its double tier of arches runs for more than 700 metres across the lower town. Walk up the stairs beside it to the top of the old wall for the view along the arches, then come back after dark when it is lit.
Segovia is about 30 minutes from Madrid Chamartín by high-speed train to Segovia-Guiomar station, then 15 minutes into town by city bus, which makes it the best day trip from the capital. The aqueduct, the cathedral and the Alcázar are all within a 20-minute walk of each other inside the UNESCO-listed old town. Our castles and palaces guide covers the Alcázar. Order roast suckling pig (cochinillo) for lunch, the local speciality.
Mérida#
Mérida, founded in 25 BC as Emerita Augusta for veterans of Augustus’s legions, became the capital of the province of Lusitania and has more Roman remains than any other city in Spain. The archaeological ensemble is spread across the modern town, so plan a full day on foot.
Start at the Roman theatre, its two-storey stage front of marble columns rebuilt from the original pieces, and the amphitheatre next door, where gladiators fought before 15,000 spectators. Then walk to the Temple of Diana in the middle of town, across the Roman bridge over the Guadiana, one of the longest surviving from antiquity, and out to the arches of the Los Milagros aqueduct, where storks nest on the piers. The Alcazaba, a 9th-century Moorish fortress, sits at the end of the bridge, and the Roman circus is on the edge of town. A combined ticket covers the main sites; buy it at the first one you visit.
Do not skip the National Museum of Roman Art, Rafael Moneo’s brick hall of mosaics and statues beside the theatre. In July and August the Classical Theatre Festival stages Greek and Roman plays in the theatre at night, the best way to see it. Mérida is about two and a half hours by bus from Seville.

Seville and Córdoba#
Itálica, in Santiponce just 9 kilometres north of Seville, was founded in 206 BC by Scipio for his wounded soldiers, the first Roman city in Spain. It was the birthplace of the emperor Trajan and probably Hadrian, who rebuilt it lavishly. The highlight is the amphitheatre, one of the largest in the Roman world, with room for about 25,000 people; walk the streets beyond it for floor mosaics of birds, planets and Neptune. Buses from Seville’s Plaza de Armas station take about 20 minutes. Allow two hours, and go early: there is very little shade.
Madinat al-Zahra was the palace-city that Abd al-Rahman III began in 936, 8 kilometres west of Córdoba, when he declared himself caliph. It was sacked in 1010 and lost for centuries; only about a tenth has been excavated. Start at the visitor centre and museum, then take the shuttle up to the site for the restored Hall of Abd al-Rahman III with its carved stone horseshoe arches. A tourist bus runs from central Córdoba. Back in town, cross the Roman bridge to the Mosque-Cathedral.
Baelo Claudia is a Roman fishing town on Bolonia beach, about 20 kilometres west of Tarifa, with a forum, a small theatre, temples and the stone vats where fish sauce (garum) was made. Combine it with a swim and the huge sand dune at the end of the beach.

Tarragona and Catalonia#
Tarraco was the capital of the largest Roman province in Spain, and Tarragona still has the amphitheatre by the beach, the vaults of the Roman circus under the old town, the Praetorium tower and long stretches of Roman wall along the Passeig Arqueològic. The sites are close together and an hour’s walk links them all. Four kilometres north of the centre, the Pont del Diable aqueduct crosses a wooded valley; it is free, and you can walk along the water channel on top. Tarragona is about an hour from Barcelona by regional train.
On the Costa Brava, Empúries has two towns in one: the Greek trading colony of Emporion, founded in the 6th century BC, and the larger Roman town above it, where Rome’s armies first landed in Spain in 218 BC. The ruins run down to the sea at L’Escala, and the beach next to them is one of the prettiest on the coast.
Prehistoric caves and dolmens#
The Palaeolithic cave art of northern Spain is a single UNESCO listing of 18 caves, most in Cantabria. The original Cave of Altamira, with its ceiling of red and black bison, is closed to protect the paintings apart from five visitors a week from a waiting list; the old Friday lottery at the museum no longer runs. Everyone else sees the Neocave, an exact replica inside the Altamira Museum near Santillana del Mar, which is worth the trip on its own.
To see real paintings, book a guided visit to El Castillo and La Pasiega at Puente Viesgo, 30 minutes from Santander, where the hand stencils and red discs include some of the oldest dated cave art in Europe. In Asturias, Tito Bustillo at Ribadesella opens from March to October. Groups are small and tickets sell out, so book ahead.
In the south, the Antequera dolmens are megalithic tombs built about 5,500 years ago, an hour from Málaga. Menga is the largest, a chamber roofed with stone slabs that weigh up to 150 tonnes; Viera stands beside it and El Romeral is a short drive away. Entry is free for EU citizens. Near Almería, Los Millares is a fortified Copper Age town with walls and tombs.

Burgos and Castile#
The Atapuerca hills, 15 kilometres east of Burgos, hold the oldest human fossils in western Europe, more than 800,000 years old, and the Sima de los Huesos pit with remains of about 30 individuals. Guided tours of the excavation trenches leave from the visitor centres in the villages of Atapuerca and Ibeas de Juarros; in July the digs are often in progress. See the finds first at the Museum of Human Evolution in Burgos.
Numantia, on a hill near Soria, is where the Celtiberians held out against a Roman siege until 133 BC; the ruins and reconstructed houses are quiet and atmospheric. Clunia has a Roman theatre cut into the rock. In León province, Las Médulas is the strangest landscape in Spain: red pinnacles and chestnut woods left behind when Roman miners collapsed whole mountains with water to get at the gold. Walk the trails from the village and climb to the Orellán viewpoint for the panorama.
For walled towns, Ávila has the most complete medieval walls in Spain, 2.5 kilometres with 88 towers, and you can walk sections along the top. Cáceres keeps a medieval and Renaissance old town of stone palaces and towers, and Toledo layers Roman, Visigothic, Islamic, Jewish and Christian Spain on one hilltop.
Galicia and the north#
Lugo is the only city in the world still completely enclosed by its Roman walls: a circuit of a little more than 2 kilometres, with more than 70 towers. A path runs along the top, free and open to all, and the full loop takes about 40 minutes. In A Coruña, the Tower of Hercules is a 2nd-century Roman lighthouse, 55 metres tall and still working; climb it for a small fee for views over the Atlantic.
In Asturias, Santa María del Naranco above Oviedo is a 9th-century royal hall in the pre-Romanesque style found nowhere else. Galicia’s hill forts (castros), such as San Cibrao de Las near Ourense, show the round stone houses of the Iron Age.
The islands#
On Menorca, more than a thousand prehistoric monuments earned a UNESCO listing as Talayotic Menorca in 2023. Start with the Naveta des Tudons near Ciutadella, a boat-shaped stone tomb about 3,000 years old, then find the T-shaped stone taulas at Torralba d’en Salord and Torre d’en Galmés. Most sites are free or a few euros and you need a car or bike.
In the Canary Islands, the Pyramids of Güímar on Tenerife are stepped lava-stone platforms promoted by the explorer Thor Heyerdahl; most archaeologists think they are 19th-century farm terraces, but the park is worth a visit. On Gran Canaria, Risco Caído is a UNESCO-listed group of cave dwellings and sacred mountains of the islands’ pre-Hispanic people.
Historic sites compared#
| Site | Region | Period | Highlights | Time needed |
|---|---|---|---|---|
| Aqueduct of Segovia | Castile and León | Roman, c. 100 AD | Free, 28 m of arches in town | 1 hour |
| Mérida | Extremadura | Roman, from 25 BC | Theatre, amphitheatre, bridge | Full day |
| Itálica | Andalusia | Roman, from 206 BC | Huge amphitheatre, mosaics | 2 hours |
| Tarragona | Catalonia | Roman | Seaside amphitheatre, circus vaults | Half day |
| Madinat al-Zahra | Andalusia | Caliphate, 10th century | Palace halls, museum | 3 hours |
| Baelo Claudia | Andalusia | Roman | Fish-sauce factory, beach | 2 hours |
| Empúries | Catalonia | Greek and Roman | Two towns by the sea | 2 hours |
| Altamira | Cantabria | Palaeolithic | Replica Neocave, museum | 2 hours |
| El Castillo | Cantabria | Palaeolithic | Original hand stencils | 1 hour |
| Antequera dolmens | Andalusia | Neolithic | Menga’s giant chamber, free for EU citizens | 2 hours |
| Atapuerca | Castile and León | Prehistoric | Excavations, Burgos museum | Half day |
| Las Médulas | Castile and León | Roman mining | Red pinnacles, trails | Half day |
| Lugo walls | Galicia | Roman | Free walk on the walls | 1 hour |
How to visit#
Most state and regional sites close on Mondays and open from about 9am or 10am to 6pm in winter and later in summer, often with shorter hours on Sunday afternoons. In July and August, inland Andalusia and Extremadura reach 40C (104F) by mid-afternoon and sites like Itálica and Madinat al-Zahra have almost no shade, so be at the gate at opening time and carry water. Our best time to visit Spain guide has the monthly detail.
Andalusia’s state-run sites, including Itálica, Madinat al-Zahra and Baelo Claudia, are free for EU citizens with ID and cost about 1.50 euros for everyone else. The caves of Cantabria, Atapuerca and Tito Bustillo work on timed, small-group tickets that sell out in summer, so book online. Trains reach Segovia, Mérida, Tarragona, Córdoba, Burgos and Lugo; for Las Médulas, Baelo Claudia, Numantia and Menorca’s monuments you need a car. See getting around Spain for rail passes and car hire, and the itineraries for how to fit Segovia, Toledo and Mérida into a route. For background on the Moorish and Catholic past behind these places, see the culture guide.
Combine sites by theme. Seville makes a base for Itálica, Carmona and Córdoba’s Madinat al-Zahra; Madrid covers Segovia, Ávila and Toledo by high-speed train; and Santander puts you within an hour of Altamira and the Puente Viesgo caves.
Rules and etiquette#
Photography is banned inside the painted caves, and you leave bags in lockers before going in; the caves are kept cool and damp, so bring a layer even in August. At open-air sites, stay on the marked paths and do not climb on walls or mosaics. Flying drones over monuments and archaeological sites needs a permit, and guards do enforce it. Several Roman theatres, including Mérida and Itálica, host summer concerts and plays, and on those days parts of the site can close early for setup.
All historic sites in Spain#
Monument
Sagrada Família
Unfinished basilica by Antoni Gaudí in Barcelona
Monument
La Mezquita
Former mosque converted into cathedral featuring Islamic arches
Monument
Casa Batlló
Modernist Gaudí residence notable for organic façade
Monument
Aqueduct of Segovia
Roman aqueduct still standing as engineering marvel
Monument
La Rambla, Barcelona
Busy pedestrian boulevard lined with shops and markets
Monument
Cave of Altamira
Prehistoric cave with Paleolithic polychrome paintings
Monument
Tower of Hercules
Ancient Roman lighthouse still functioning near A Coruña
Monument
Palau de la Música Catalana
Modernist concert hall in Barcelona with ornate interior
Monument
Las Médulas
Ancient Roman gold-mining landscape with red ochre cliffs
Ruins
Madinat al-Zahra
Ruins of an 10th-century Umayyad palace near Córdoba
Monument
Numantia
Ruined Celtiberian town in Spain, famed for resistance
Monument
Cathedral-Basilica of Our Lady of the Pillar
Baroque basilica in Zaragoza and Marian pilgrimage site
Monument
Hospital de Sant Pau
Modernist hospital complex in Barcelona and UNESCO site
Archaeological Site
Tartessos
Ancient Iberian civilization or region in southwestern Spain
Monument
Valley of the Fallen
Monumental basilica and memorial near Madrid, Franco-era site
Archaeological Site
Alcántara Bridge
Roman stone bridge notable for large segmental arches
Ruins
Italica
Ancient Roman city ruins near Seville, Spain.
Monument
Puerta del Sol
Central Madrid square and key public meeting point
Monument
Torre del Oro
12th-century military watchtower on Seville's Guadalquivir River
Monument
Palau Güell
Gaudí-designed mansion in Barcelona showcasing Modernisme
Archaeological Site
Pyramids of Güímar
Stepped stone terraces on Tenerife, disputed origins
Archaeological Site
Tarraco
Roman provincial capital with extensive archaeological remains
Monument
Santa María del Naranco
Pre-Romanesque palace on Oviedo's royal hillside
Monument
Las Ventas
Historic Madrid bullring and notable Neo-Mudéjar architecture
Monument
Roman walls of Lugo
Roman defensive walls encircling Lugo, UNESCO World Heritage
Archaeological Site
Via Domitia
Ancient Roman road crossing southern Gaul into Hispania
Monument
Alcazaba of Almería
Moorish fortress and citadel overlooking Almería city
Archaeological Site
Empúries
Archaeological site with Greek and Roman ruins
Archaeological Site
Cave of Altamira and Paleolithic Cave Art of Northern Spain
Prehistoric cave in Cantabria with Upper Paleolithic paintings
Monument
Gate of Europe
Twin leaning Madrid skyscrapers, notable KIO towers
Monument
Torre Picasso
Prominent Madrid skyscraper and office tower
Monument
Forest of Remembrance
Madrid memorial wood commemorating 2004 train attack victims
Monument
Mystery Play of Elche
Medieval liturgical drama performed annually in Elche
Monument
Puerta de Alcalá
18th-century monumental gate and Madrid city symbol
Monument
Magic Fountain of Montjuïc
Large choreographed fountain offering nightly music and light shows
Monument
Cathedral of Zamora
Romanesque-Gothic cathedral notable for its distinctive dome
Monument
Columbus Monument, Barcelona
Monument commemorating Columbus; tall waterfront column
Tomb
Dolmen of Menga
Massive Neolithic dolmen megalithic burial chamber
Archaeological Site
Vía de la Plata
Historic Roman road route through western Spain
Archaeological Site
Cave of El Castillo
Cave with Paleolithic art and ancient handprints
Tomb
Dolmen of Viera
Neolithic megalithic tomb on Antequera's limestone ridge.
Monument
Episcopal Palace, Astorga
Gaudí-designed Episcopal palace and museum in Astorga.
Monument
Monastery of Yuste
Historic monastery where Charles V retired
Archaeological Site
Siega Verde
Riverside site with Paleolithic cave paintings
Archaeological Site
Antequera Dolmens Site
Prehistoric megalithic tomb complex, UNESCO World Heritage
Monument
Cathedral of Valladolid
Neoclassical cathedral dominating Valladolid's historic centre
Monument
Old Cathedral of Salamanca
Romanesque cathedral in Salamanca adjoining the New Cathedral
Monument
Palacio de la Magdalena
Early 20th-century royal palace on Santander's Magdalena Peninsula
More Interests#
Spain historic sites FAQs#
What is the best Roman site in Spain?
Mérida, with the best-preserved Roman theatre in the country, an amphitheatre, a temple, a long Roman bridge and an aqueduct in one walkable town. For a single monument, the Aqueduct of Segovia is the most impressive and is free to see.
Can you visit the Cave of Altamira?
The original cave is closed apart from five visitors a week from a waiting list; the Friday lottery at the museum no longer runs. Everyone else visits the Neocave, a full-size replica of the painted ceiling in the Altamira Museum near Santillana del Mar. For real cave paintings, book El Castillo at Puente Viesgo.
Is the Aqueduct of Segovia free?
Yes. It stands in the middle of the city and you can walk under and beside it at any time. It is about 30 minutes from Madrid by high-speed train.
How do I get to Itálica from Seville?
Take a bus from Seville’s Plaza de Armas station to Santiponce, about 20 minutes; the site is a short walk from the stop. Entry is free for EU citizens and about 1.50 euros for others, and it is closed on Mondays.
What is Madinat al-Zahra?
It is the ruined palace-city that the caliph Abd al-Rahman III built outside Córdoba from 936, abandoned after it was sacked in 1010. Its museum, carved halls and terraces are a UNESCO World Heritage site, 8 kilometres west of Córdoba.
Are the Antequera dolmens worth visiting?
Yes. The Dolmen of Menga is one of the largest megalithic tombs in Europe, built about 5,500 years ago, and entry is free for EU citizens. Antequera is an hour from Málaga and fits easily into a day between Málaga, Granada and Seville.
When is the best time to visit historic sites in Spain?
Spring and autumn, from March to June and September to November, when it is warm but not hot. In summer go at opening time; in July and August Mérida’s Classical Theatre Festival lets you watch plays in the Roman theatre at night.
