The Mausoleum of Augustus is a large tomb built by Augustus, the first Roman Emperor, in 28 BC on the Campus Martius in Rome, Italy. It is part of the UNESCO World Heritage Site: Historic Centre of Rome.
Baths of Diocletian, Rome. From they were the largest of the imperial baths. Part of the ancient complex is now the Basilica of Santa Maria degli Angeli designed by Michelangelo and completed by Vanvitelli.