The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

Seven early Christians were sealed into a cave where legend has it they slept unharmed for centuries.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

This church houses the tomb—but not the remains—of St. Nicholas, the likely progenitor to Santa Claus.

A Lycian city of the dead carved into the hillside of Southern Turkey, complete with startlingly human touches.

Roman ruins, natural methane fires and a lovely beach.

The best-preserved ancient theater in the world.

Once described as the "Eagle's Nest," this ruined ancient city rests on a remote mountaintop.

A tribute to a Ukrainian heroine who went undercover and killed several Nazi operatives.

This underground transport hub doubles as an art gallery.

This oddly shaped building is a surprising Soviet-era crematorium.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

This museum explores the tumultuous history of Lviv under Nazi and Soviet occupation.

One of the most valuable palace-garden complexes in the eastern borderlands—and one of the most haunted.

This attraction was abandoned after the Chernobyl disaster.

Monumental sculptures guard many of the graves, transforming this necropolis into an open-air fine art museum.

A unique Soviet mosaic preserved on the facade of a shoe factory in Lviv.

A fortress built to pacify local uprising that had a stint as a Nazi concentration camp before becoming a five-star hotel.

This street has over a half-dozen names, all at once.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

The largest park in Lviv is surrounded by a network of disused rail tracks.

Welcome to the world's only museum dedicated to the Ukranian Easter egg.