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

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

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

Drift through underground caves on a tube.

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

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

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

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

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

This museum preserves the heyday of Puerto Rican coffee.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

In the 1970s, the citizens of several small villages came together to stop their homes from being destroyed for a new airport.

The history of central Minnesota under one roof.

It's said the devil used this mushroom rock as a table for a late-night meal.

A scene from one of Hungary's most famous novels.

This concrete memorial commemorates a group of brave locals who saved the crew and passengers of a wrecked ship.

Now in ruins, this castle stood for centuries and saw a number of gruesome events.

This memorial site offers scenic views and a peaceful place for reflection.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

Amazing pre-Civil War ruins alongside a shallow, rocky river that hosts beautiful (but endangered) lilies.

A historic blockhouse and trading post give a glimpse into the early colonial history of South Carolina.

A rapidly disappearing authentic bit of the old south.