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

This colorful gate stands as an entrance to the walled city of Old San Juan.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

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

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

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

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

The world's brightest bioluminescent bay.

This small primate research island is teeming with playing, fighting wild monkeys.

The bat-covered home of one of the world's most popular brands of rum is located on a tropical Art Deco campus.

Hidden in the highlands of Guatemala, a small shrine venerates a forbidden folk saint.

In this breathtaking canyon, crocodiles bask on boulders and glide through the murky waters.

This series of waterfalls tumble into a radiantly blue river.

The former house of an anthropologist couple displays Lacandón Maya artifacts in a homey atmosphere.

The displays in this off-the-beaten-path museum highlight the holistic, indigenous methods of healing.

Mexico’s first and only Tzotzil Maya bookbinding workshop.

This ancient sword lay in a waterlogged tomb for 2,500 years, but managed to remain relatively untarnished and impressively sharp.

This stone quarry was used to make axes and other tools more than 6,000 years ago.

The scarce remains of a sunken ship peek out from the sand on East Beach.

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

An island graveyard with spectacular views of the Caribbean.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.