Local lore says two enemy dragons live within these breathtaking mountain lakes.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

Hideout of thieves, monks, and goat-footed gods.

A cave network located at the southernmost tip of mainland Greece was once believed to be an entrance to Hades.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

The ruins of an abandoned medieval city where the last Byzantine emperor was crowned.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

A spectacular cave and a beguiling lake.

Monasteries on rock pillars, once accessible only by frayed ropes.

This general store offers visitors a glimpse back into the 1930s.

This mountaintop beacon is only lit three times a year but shines like some kind of all-seeing eye.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

Its dark depths conceal millions of rare, delicate crystal formations.

A "haunted" landmark on the coast of Southern California.

Offering commanding views of the California coastline, this restaurant was a hub for the artists and bohemians of Big Sur.

Ingenious bakery opens up the first Cupcake ATM at their flagship location in Beverly Hills.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

San Francisco Bay's ghost town.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.