A statue honors the children who fought Nazis in Poland.

Maybe the only restaurant in the world where your seat will be signed by a Nobel laureate.

This "tower of death" has acted as an observatory, a religious hub, and an executioner's lair.

This famous city eluded concrete detection until the early 2000's.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

Sofia's legislative center is continuously reinventing itself.

A striking symbol of the Bulgarian capital.

"Holy Wisdom" overlooks the city that became its namesake.

This stone figurine was made more than 6,000 years ago and depicts a female deity of the Neolithic Vinča culture.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

A futuristic, brutalist masterpiece that is also strangely prison-like.

This one-time health resort was used by aristocrats around the world.

A whimsical bridge adorned with decorative dragons.

The birthplace of the Ford Model T is now a museum full of antique cars.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The giant birds honor two native North American species.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

A massive Montreal stadium that has seen nothing but trouble since its inception.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The only example of a Paris Métro sign in use at a subway station outside of the French capital.