Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

Order cookies baked by cloistered nuns in a 400-year-old monastery.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Two stone columns flank the grand Venice square, but there were supposed to be three.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Wandering this ancient burial place offers a glimpse of the afterlife in the fresco-adorned tombs of an ancient Etruscan civilization.

A 16th-century horror show built in a lovely Italian garden.

Nine caves filled with recently-discovered archaeological finds under the houses and the streets of the most ancient district of an old town.

Water and windows define this defensive Italian well.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

The hallucinogenic center of the ancient world.

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

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

Look closely and you’ll notice that the color changes a third of the way up the tower.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.