View from Castel Sant'Angelo over Vatican City. On the left is the Basilica of St Peter's, while the long brown buildings to the right are the Vatican Museum. The arch of the pine-cone courtyard can be seen on the right end. In the lower right is the elevated walkway designed to allow the Pope to escape the Vatican into the fortress of Castel Sant'Angelo during trouble.

Tivoli - Villa d'Este.

Tivoli - Villa d'Este - Le Cento Fontane (The Hundred Fountains) - The Avenue of the 100 Fountains.