This shifting North Carolina sand dune is an odd little desert surrounded by oceanic forest life.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

Breathtaking and huge 430 year old maps of Italy.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Every equinox this Maya pyramid puts on a spooky ancient light show.

These azure waters were thought to lead to the Mayan Underworld.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

Medieval torture techniques with a modern conscience.

A marvel of Byzantine engineering under the streets of Istanbul.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

A modern zoetrope on the New York City subway.

A terrific purveyor of natural history objects and curios.

An artist's cute bronze subway sculptures belie his violent artistic past.

Commemorating the spot where the famous scientist fed his pigeons.

There must be a pun in this haystack somewhere...

Elevated freight railway turned wildly successful urban park.

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

A field of nothing but boulders which resembles a giant's gravel driveway.