Rome's semi-secret peephole vista is also a former Crusader stronghold.

Gods clash with machines in a power plant regenerated as a museum.

This constantly evolving art space saved an Italian town from its own crippling reputation.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.