Philippeion settled
337 BCE.
Shown on the map at 37.639°, 21.629°.
The Philippeion (Greek: Φιλιππεῖον) in the Altis of Olympia was a tholos made of in limestone and marble. Originally, it contained chryselephantine (ivory and gold) statues of the family of Philip II, including himself, his son Alexander the Great, one of his wives Olympias, his father Amyntas III, and his mother Eurydice I. It was made by the Athenian sculptor Leochares as a memorial celebrating Philip's victory at the battle of Chaeronea (338 BC). It was the only structure inside the Altis dedicated to human beings rather than gods.
Text from the Wikipedia article Philippeion, licensed CC BY-SA 4.0.