Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A bronze statue on a downtown corner honors Minneapolis's favorite career gal.

After the musical legend's death, his memorial was mysteriously graffitied in gold.

After World War II, this former concentration camp in Northern Italy became a refuge for those displaced by the war.

Rainbow shutters decorate this former police station.

No one's quite sure where this quirky university tradition originated.

A beach made of semi-precious green sand on the Big Island of Hawaiʻi.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Head to the mountains to catch a glimpse of Spain's endangered subspecies of brown bear.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Three Malay graves are at the center of an annual pilgrimage that reflects syncretic practices.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

A lush indoor jungle fills this bustling Madrid transportation hub.

Once the grandest synagogue in medieval Spain, it now stands as a memorial of the 15th-century Jewish exile.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

An old soap company building now houses one of Minneapolis’s oldest independent non-profit art galleries.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Montreal's giant farmer's market is a foodie's best friend, especially in the winter months.

A museum dedicated to the history and exploration of both popular music and science fiction.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

It was once the base for a series of domestic terror attacks.