Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

David Sedaris called it "The greatest shop in the world."

Jesus' footprints and the first catacombs in the world.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

A corkscrew-shaped barn in Ireland.