The Ancient Agora of Athens is the best-known example of an ancient Greek agora, located to the northwest of the Acropolis and is bounded on the south by the hill of the Areopagus and on the west by the hill known as the Colonus Agoraeus.
The agora in Athens had private housing, until it was reorganized by Peisistratus in the 6th century BC. Although he may have lived on the agora himself, he removed the other houses, closed wells, and made it the centre of Athenian government. He also built a drainage system, fountains and a temple to the Olympian gods. Cimon later improved the agora by constructing new buildings and planting trees. In the 5th century BC there were temples constructed to Hephaestus, Zeus and Apollo.
Buildings and structures of the classical agora:
Peristyle Court, Mint, Enneakrounos, South Stoa I and South Stoa II, Heliaia, Strategeion, Colonos Agoraios, Tholos, Agora stone, Monument of the Eponymous Heroes, Metroon (Old Bouleuterion), New Bouleuterion, Temple of Hephaestus (Hephaestion), Temple of Apollo Patroos, Stoa of Zeus, Altar of the Twelve Gods, Stoa Basileios (Royal stoa), Temple of Aphrodite Urania, Stoa of Hermes and Stoa Poikile etc.
Later buildings added to the site:
The Middle stoa which sat across the sanctuary, in front of the Heliaea.
A small Roman temple was added in front of the Middle stoa.
An Altar of Zeus Agoraios was added just to the east of the Monument to the Eponymous Heroes.
The Temple of Ares, dedicated to Ares, the god of war, was added in the north half agora, just south of the Altar of the Twelve Gods.
The Odeon of Agrippa and accompanying gymnasium were added in the centre of the agora.
The substantial Stoa of Attalos was built along the eastern edge of the agora.
A collection of buildings were added to the south-east corner: the East stoa, the Library of Pantainos, the Nymphaeum and a temple.
There is evidence of a Synagogue in the Agora of Athens in the 3rd century.
The ancient Athenian agora has been excavated by the American School of Classical Studies at Athens since 1931 under the direction of T. Leslie Shear, Sr. They continue to the present day, now under the direction of John McK Camp.
After the initial phase of excavation, in the 1950s, the Hellenistic Stoa of Attalos was reconstructed on the east side of the agora, and today it serves as a museum and as storage and office space for the excavation team.
The Roman Forum of Athens:
The Roman Forum of Athens is located to the north of the acropolis and to the east of the original classical Greek agora.
Museum of the Ancient Agora:
The museum is housed in the Stoa of Attalos, and its exhibits are connected with the Athenian democracy. The collection of the museum includes clay, bronze and glass objects, sculptures, coins and inscriptions from the 7th to the 5th century BC, as well as pottery of the Byzantine period and the Turkish occupation.