They were the largest and most splendid baths built in Rome and they could hold as many as three thousand people. The pathway leads up to gyms, libraries, a 3,500 square metre pool and ambients that used to be the heart of every thermal plant: the frigidarium, the tepidarium and the calidarium.

These large rooms were transformed by Michelangelo to create the Basilica of Santa Maria degli Angeli e dei Martiri Cristiani and the Certosini convent.

The museum route includes the big Chiosco Michelangiolesco della Certosa where you can see more than 400 pieces of art: statues, reliefs, altars and sarcophagi which originated from Roman territory.

Single ticket valid for 3 days at 4 sites (Palazzo Massimo, Palazzo Altemps, Crypta Balbi and Baths of Diocletian)