A sober museum housed in the original administrative building of one of Stalin's largest gulags.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

Known as the most scenic route in Sri Lanka, this train line is steeped in history and offers an unparalleled view of the country.

All that is left of an Armenian community that thrived in Dhaka 200 years ago.

A monument to the British doctor who connected mosquitoes to malaria.

An eclectic mix of influences rot together in harmony in this India necropolis.

This historic complex is home to the oldest Christian grave in Kolkata, India.

Kolkata’s only Portuguese church has a curious link with chickens.

This lavish estate recalls the opulent history of Calcutta.

The world's largest secondhand book market is a haven for bibliophiles and bargain hunters.

The house that birthed The Old Man and The Sea is now a museum devoted to the old man who wrote it.

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

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

Cuba's historical trains remind natives of their country's sugary sweet past.

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

A series of five defunct panopticon prisons in Cuba.

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

A small museum in the Bay of Pigs gives the Cuban perspective on the famously failed U.S. invasion.

A nuclear power plant abandoned along with an international allegience.

This niche museum devoted to ancient religious artifacts is shaped like the very thing it displays.

Puerto Rico's once thriving oil company is now an abandoned wonderland of rusty steel.

The world's second largest single-dish radio telescope, once used to contact E.T.

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.