The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

Years of neglect and nature took a toll on this 19th-century lighthouse.

The location of Puerto Rico's first water bottling plant, thanks to a collaboration between Mother Nature and technology.

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

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

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

This former sugarcane transport tunnel is now a portal to a lovely beach.

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

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

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.

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

A natural tidal swimming pool is ringed by bizarrely artistic lava rock formations.

These eclectic homes nestled into the cliffs of a Caribbean island were built entirely from scavenged materials.

This giant Cold War satellite dish has become a symbol of Trinidad's need for sovereignty.

This island hill is strewn with boulders carved by shipwreck victims from the age of sail.

A 220-foot deep watery drop-off, filled with marine life.

Uninhabited islet in the Caribbean is the sanctuary of giant lizards.

Swim or sail to this pie-slinging boat off the coast of St. Thomas.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

A pocket of jungle amidst urban expansion in Panama.

A mysterious dark-skinned Christ statue has been this town's religious center for centuries.

From a distance, Latin America's first Baha'i Temple looks like an enormous egg perched atop a hill.