Altar of the Twelve Gods Archaeological Site

Address: Athens, Attica, Greece (approx. 37.9758 N, 23.7228 E)

Hours: Public monument (accessible at all times)

Admission: Free (archaeological remains in public spaces)

The Altar of the Twelve Gods is an ancient religious monument in central Athens dedicated to the twelve Olympian deities. It is a well-known archaeological feature inside the classical Agora area and served as a focal point in the city.

Stone foundations and scattered architectural fragments mark the site; visitors encounter low masonry and exposed foundations rather than a standing temple. The location sits within the wider Agora excavations where pathways and interpretive signs place the altar in the urban layout of classical Athens.

Built and used in antiquity as a civic and religious focal point, the altar later fell into ruin and was uncovered by archaeological work in the modern period. Over time the site became a reference location for civic activities and route measurement in the city.

Located in central Athens, the altar lies within the archaeological zone adjacent to the Roman Agora and the Ancient Agora, close to the Monastiraki area and within easy walking distance of the Acropolis.

• Zero point of Athens: Functioned in antiquity as a civic reference point; distances in Athens were measured from here.
• Visible ruins: Archaeological remains consist of foundation stones and fragmentary masonry visible within the Agora excavations.

The site is in central Athens near Monastiraki and the Agora; reachable by metro (Monastiraki station) and within easy walking distance of the Acropolis and other central attractions.

• Visit early in the morning to experience the Agora with fewer tourists and better light on ancient ruins.
• The altar is located within central Athens - combine with nearby sites such as the Roman Agora and Monastiraki.
• Low-lying ruins can be hard to parse without a guide; bring a guidebook or audio guide for inscriptions and references.