No one knows how this Pacific Northwest spruce tree came to have so many trunks.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

A logging-themed roadside restaurant surrounded by museum-quality machinery and artifacts from the industry's heyday.

A massive sea stack famous for its appearance in The Goonies.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Erotic art covers the walls of the largest ancient pleasure palace.

The walls and streets of the ancient city are peppered with penises.

Ancient snack bar of the Roman Empire re-opened.

The relics of dozens of martyrs are stored in a single chapel.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

A sculpture serving as an homage to Pope John Paul II.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

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

The remains of this 2nd-century Roman temple are incorporated into a modern building.

Architectural monsters are devouring this palace's every door and window.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

On the walking path from Monterosso to Vernazza, a small shrine dedicated to feline friends.

Five candy-colored villages on the Italian Riviera.

This tiny chapel withstood a massive mudslide and flash flood.

The bomb-ravaged remains of of a colossal Neptune.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.