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.

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.

A park where people have been going to feed friendly pigeons since the 18th century

This tiny home was originally a narrow alleyway.

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

The abandoned remains of this once-thriving hotel looms over the city, awaiting an uncertain future.

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

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

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

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

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

A blacklight mini-golf fever dream pays tribute to the iconic rock band.

The birthplace of Las Vegas is now preserved as a historic and natural area.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

Ho Chi Minh's perfectly preserved body has been on display here since 1975.

Twice a day a speeding train passes only inches from the homes of this residential neighborhood.

Founded during the Ayutthaya era, this unique Buddhist temple remains shipshape to this day.

This most unusual dragon is made of recycled Chinese cutlery.

This sensational silver temple is the product of centuries of metalworking.

Buddha shrines hide within dark tunnels at this unique forest temple.

The largest United States military cemetery overseas.

This gold sash was part of a massive collection of pre-Hispanic gold artifacts discovered in an isolated village in the Philippines.