Choragic Monument of Thrasyllos
The choragic monument of Thrasyllos is a memorial building erected on the artificial scarp of the south face of the acropolis hill, Athens, 320/319 BCE to commemorate the choregos of Thrasyllos. It is built in the form of a small temple and fills the opening of a large, natural cave. It was modified in 271/70 by Thrasykles the son of Thrasyllos, agonothetes in the Great Dionysia Games. Pausanias refers to the monument indirectly providing us with the information that in the cave there existed a representation of Apollo and Artemis slaughtering the children of Niobe.