This precariously perched fortress was once ruled by a crow-worshipping baron.

The hermits of Karoulia protect their asocial lifestyles by living on the vertical face of a treacherous precipice.

The Roman city was the birthplace of various emperors and is home to one of the empire's most impressive architectural feats.

You'll find rocket launchers, not rollercoasters, at Russia's “military Disneyland.”

The people of Padua pledged to construct this church if the city was spared from destruction during World War I.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

Named for the biblical warrior, the largest castle in Israel actually dates to the Middle Ages.

This modernist cinema has survived war and reconstruction to become a symbol of Lebanon’s revolutionary spirit.

Wander among hulking piles of rusted machinery left over from the Eritrean-Ethiopian War.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

This otherworldly church spire reaches up toward the heavens.

A lavish 16th-century mansion filled with spectacular staircases, fantastic frescoes, and gorgeous gardens.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

The Dead Sea Scrolls were discovered in the ruins of this ancient monastic community.

A giant portrait of an ancient king looms over the river.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The world's last remaining store of its kind.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

A ruined Maya city that suffered a years-long case of mistaken identity.