|Summary:||Oblong hall; located on the eastern side of the Sanctuary of Apollo.|
|Date:||ca. 300 BC|
67.2 m x 8.86 m.
Eight column hexastyle prostyle pronaos led into a long narrow cella with a pitched ceiling and floor depressed about 0.5 meters forming a basin and creating benches on each side. Cella had a room at the north end containing a large triangular base. Between the main room of the cella and the small inner room were Doric half columns engaged to each wall and 2 piers which were Doric half columns on one side and Bull capital pilasters on the other.
Probably designed to hold a trireme dedicated after a naval victory, this building is built in the form of a shipshed. Previously called the Monument of the Bulls because of bulls head capitals on the interior pilasters. Dinsmoor refers to this as the Pythium (Pythion) because the small room to the north of the cella was dedicated to the Pythian Apollo.