place
the Ptolemaeum (gymnasium at Athens)
the Ptolemaeum
also: Ptolomaeum, Ptolemaeum, gymnasium quod Ptolomaeum vocatur
A gymnasium at Athens near the Agora, named after one of the Ptolemies who endowed it. In the dramatic frame of De Finibus 5.1 the company has just heard Antiochus lecture there before setting out for the Academy.