Legend says it was constructed with the destroyed pillar of an ancient Greek Temple.

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

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

The final resting place of the controversial chess champion.

Iceland's tribute to its thankless civil servants.

The steel hull of a wrecked tug rests on Lobster Cove on Monhegan Island’s rocky southeastern shore.

The only remaining historic maritime signal station in the United States.

Abandoned Italianate architecture on the coast of Maine.

Legend says this sacred tree was a gift from goddess Athena.

Large collection from the 3rd millennium BCE.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

An ancient octagonal weather station named for the eight Greek gods of wind.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

A Byzantine-era church hidden in a wooded area below the Acropolis.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

This famous archeological mystery may be an ancient example of movable type.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This striking sculpture of Icarus honors Greece's fallen flyers.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.