An island graveyard with spectacular views of the Caribbean.

A small collection of iguana-infested ruins hides amid Cancún's bustling hotel zone.

It is an old prison, lighthouse, and castle once used to guard the port in Havana, Cuba

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

This natural rock formation spouts jets of water into the air.

There is one corporation registered for every three square feet of space in this inconspicuous office building.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

See how aloe goes from field to store and discover the history of aloe cultivation in the Caribbean.

A wooden hut from the Heroic Age of Antarctic Exploration.

One of the most extreme deserts in the world, these snow-free valleys harbor life, despite the hostile environment.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

Reclaimed material from a convent destroyed by cannonfire was used to build parts of this 19th-century cemetery.

An Inca spa, military outpost or maybe… both?

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

What was once a unique system of urban elevators is turning into a mechanical ruin.

A volcanic crater that visitors can look inside.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The world's most remote airport.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.