Bouleuterion

It should not be confused with the Prytaneion, which housed the executive council of the assembly and often served as the boule's mess hall.

Solon was credited with its formation in 594 BC as an assembly of 100 men each from Athens's four original tribes.

It was almost square and included an oblong antechamber and a main council chamber, a large rectangular room with wooden benches arranged in rows along the walls.

It was smaller but more sophisticated, with an amphitheater-like system of twelve levels of semicircular benches.

The Bouleuterion of Ancient Olympia was shaped like an early Greek temple, a kind of square horse-shoe.