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

A resilient tree that has survived for more than 700 years in Guánica Dry Forest.

This museum preserves the heyday of Puerto Rican coffee.

This "sausage route" features gorgeous views and family-owned restaurants.

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

This rock in the middle of a river in Jayuya contains dozens of Pre-Columbian Taíno petroglyphs.

This former railroad bridge was named after the great river that once flowed below it.

Enjoy the waters of this half-moon-shaped natural pool surrounded by breathtaking scenery.

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

This 20th-century mansion plays a key role in one of Puerto Rico's greatest novels.

A natural swimming pool in the middle of the Carite Forest.

This small fort played a huge role defending Puerto Rico’s capital city.

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

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

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

Drift through underground caves on a tube.

An unnatural lake in a naturally beautiful setting.

The short hike is worth the stunning views and crystal blue waters of a secluded beach.

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

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

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

On a small Puerto Rican island, banks of secret naval bunkers lie abandoned and filled with piles of office equipment.

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

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.