Years of archaeology, just chillin' by the water cooler.

To find the "unicorns of the deep" you've got to go downstairs.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

Where commuters walk through remnants of an ancient Greek necropolis.

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

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

An often overlooked ancient site in downtown Athens with substantial history (and nature).

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

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

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

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

A legendary boxing venue and ring featured in Rocky V.

Where America's first doomsday cult awaited the end of the world.

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

The humble field where the first Major League Baseball game was played.

World's first "penitentiary," meant to be humane, drove men insane.

Yo, Adrian!

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

In the early 1800s, surgery was also a show.

Ant sculptures march up the side of what used to be an iconic spot in punk rock lore.