A historic shipbuilding town is home to a sail-through fish-and-chips shop.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

A 30-foot-high stream of chocolate flows continuously at the Lindt Home of Chocolate.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

The hot chocolate here all stems from small, sustainable microproducers in Chiapas and Tabasco.

In 2013, historians discovered a hidden room devoted to the art of making royals' hot chocolate.

This 1,700-pound edible sculpture is way better than your average chocolate mousse.

One of the world's tallest, oldest, and most disgusting chocolate cascades.

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.

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

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

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

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

The world's brightest bioluminescent bay.

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

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

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

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

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

This ''hidden'' 19th-century bridge played a simple, yet important role during the Spanish-American War.

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

The ruins of the first Spanish settlement in Puerto Rico.

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