Starting with nothing more than discarded conch shells, one man has built an island/bar that would make Jimmy Buffet jealous.

This chapel on a cliff is renowned for its healing powers and was founded on the site of a supposed divine intervention.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The world's brightest bioluminescent bay.

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

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Looking like nothing more than a cartoon deserted island, this tiny sandbar is home only to a single umbrella.

A gallery of underwater art that can be visited by man and fish alike.

Hundreds of pieces of ancient Taíno art cover the walls of this Caribbean cave system.

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

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

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

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

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

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

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

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

A Cuban artist reclaimed his impoverished neighborhood as a dreamy folk art kingdom.

A massive maritime collision may have led to the myth of a resort island's strange financial status.

A mountain of conch shells created by centuries of fishermen.

The world's smallest drawbridge.

Where a rare geological phenomenon created a section of rock that resembles a checkerboard.

An underwater road considered a possible Atlantis location.

Inhospitable caverns just beneath this island paradise offer insights into alien worlds.