Castles & palaces in Italy

Rooms of Nero's summer pavilion on the Oppian Hill, more than 150 in all and over ten metres high, buried beneath the Baths of Trajan and still covered with frescoes whose motifs Raphael, Pinturicchio and Ghirlandaio came to copy in what they took for underground grottoes. Visits can include an educational tour with virtual reality.

The Doge's apartments and the offices of the Republic's government, the Armoury, and the New Prisons reached across the Bridge of Sighs.