This historic hiding place, often used by people escaping slavery, is a testament to a heroic struggle for freedom.

This strategic isle was once swapped between empires and almost entirely destroyed in a bomb explosion.

The remnants of an abandoned, 19th-century gold mill along Aruba's rugged northeastern coast.

A colossal statue with a controversial past, forgotten for more than 30 years.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

In a country where driving from one town to another is literally impossible, this small stretch of gravel is a remarkable feat.

One Greenland town turned itself into an open air sculpture gallery with the help of a series of traditional stone artworks.

Gargoyle head that brings good luck.

Inside this mansion turned museum, the works of prominent Croatian artists are on full display.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

An ancient knight and a symbol of the city's freedom.

This 15th-century church houses priceless works of art from a range of Croatian artists.

Built in 1512, the oldest cathedral in the Americas.

After Christopher Columbus died, his son built a fancy house to rule from.

The final resting place of Christopher Columbus - or possibly someone else.

This trio of Dominican cave lakes comprise a colorful biosphere of natural life.

Men in rubber-soled boots serve as your "brakes" on this toboggan ride Hemingway described as "exhilarating."

This glass skywalk offers vertiginous views down the volcanic cliffs to the beach below.

A micronation on an islet along the coast of a Portuguese island.

An elevator into the Baltic Sea.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.