The museum is actually inside the former convent of San Maurizio al Monastero maggiore, with sections dedicated to Greek, Etruscan, Roman, Gandhara and barbaric art.
The choice of the place was fit, since the monastery was built right on top of a section of the Roman Circus and along the walls of the city, built in the III century by Emperor Massimiano.
New sections, one about medieval Milan and another about the life in Mediolanum, were added in 2011.
Worth of note are two masterpieces: the Coppa Trivolzio and the Patera di Parabiago.