The oldest colonial fortress in the Americas was once the home and later prison of Christopher Columbus.

The final resting place of Christopher Columbus - or possibly someone else.

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

This replica medieval European village in the Dominican Republic was built by a Hollywood set designer.

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

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

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

Archaeological sites and great food inside the island's largest mangrove forest.

This beachside town is home to a diverse nature reserve, multiple cays, and one of the three bioluminescent bays in Puerto Rico.

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

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

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

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

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

La Cara del Indio honors the Taíno chief who fought bravely against the Spanish invasion of Puerto Rico.

Invading U.S. troops were first seen from this now-abandoned tower, leading to the Spanish-American War.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

This memorial to a family's dead son has survived a century of hurricanes and earthquakes.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.

Puerto Rico's once thriving oil company is now an abandoned wonderland of rusty steel.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

These red and black houses were awarded to the firefighters who saved their city from an enormous blaze.

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

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