Single runway interrupted by a busy road that cuts across its middle.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

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

An old slave lookout in Cuba's historic sugar cane fields.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

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

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

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

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

This staircase full of Mayan hieroglyphics is perhaps the largest single text in the world.

A devastated ruin in the south of Belize where British explorers claimed to unearth the Mitchell-Hedges Crystal Skull.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

Renowned restaurant tucked in a cave once occupied by buccaneers.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Rare signs of the former Soviet Union in the Caribbean, though not where you'd expect them.

This peculiar lake of pitch is so thick and viscous that one can walk on its surface.

A marvel of Byzantine engineering under the streets of Istanbul.

This cavernous swimming spot doubles as a home to the largest known colony of bats in Central Asia.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

A literally moving statue of stacked metal giants just continually trying (and failing) to find love.

A museum glorifying the life of Stalin, located in the city of his birth.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.

This bridge made famous in a novel and on-screen wasn't actually built over the river Kwai.