The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

Replicas of Apollo's leonine stone guard cats still line a sacred row in Greece.

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

Giant marble phalluses on the sacred island of antiquity.

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

This legendary city has been a tourist attraction for centuries.

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

The hallucinogenic center of the ancient world.

A small oasis not far from downtown Moab.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

A recreation of an Old West apothecary full of curios.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

When ecosystems collide in the arid Southwest.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Canyon walls shrouded in ferns.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A little-known hot spring haven right below the highway.

Even in death, he's still your huckleberry.

A coal fire has been burning underground here since 1896.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A remote sandstone plateau named for a legendary cattle rustler.