Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

A giant poultry statue immortalizes one of Alaska's more humorous town names.

The ruins of a town wiped out by the second-largest earthquake in recorded history.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

Colorful boxes placed over the dead are left to rot and crumble.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

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

Ancient snack bar of the Roman Empire re-opened.

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

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

The Pope’s secret escape route.

Five candy-colored villages on the Italian Riviera.

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

A new sculpture calls attention to climate change in the centuries-old city it threatens.

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

Go inside to really appreciate this 500-year-old technological masterpiece.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

2300-year-old Roman road connecting the empire.

A restaurant with an extensive Irish whiskey bar also has several first editions of famous works by Irish authors.

The ruins of a medieval monastery named after a type of tree.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.