Visit: Museo Nazionale di Castel Sant'Angelo, Lungotevere Castello 50, 00193 Rome Italy
The Castel Sant'Angelo is split into five floors which can be reached by a spiral ramp.
Advancing toward the upper part of the castle you will find different rooms that functioned as a Papal residence, decorated with perfectly preserved frescoes from the Renaissance period, besides the extensive collection of weapons.
In the upper floor there is a large terrace where you can take amazing photographs of the city from above.