Two stone columns flank the grand Venice square, but there were supposed to be three.

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 private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.