Take a giant yellow bird cage to the top of Elba's highest mountain.

This encrypted monolith protected a secret of Norse mythology by hiding in a church wall for over a millennium.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Giant sand sculptures of famous people and places are on display near the Tottori sand dunes.

Each year melting snow turns these Austrian hiking trails into scuba zones.

The world's tallest bridge is also possibly the most elegant.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

"There's nothing there," and other lies the KGB told us.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This Bordeaux parking garage has 712 indoor spaces, and one outdoor.

The world's largest reflecting pool is just two centimeters deep.

This tiny river island switches sovereignty every six months as part of a rare, centuries-old agreement.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

The largest whale museum in Europe allows visitors to walk among life-size giants.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A winding, blood-red tunnel of hardened lava navigable by foot.

Climb right into the heart of this colorful Iceland volcano.

Walk in the footsteps of the gods and straddle two tectonic plates.

Medicinal spa created with the discharge from a geothermal energy plant.

One of the most remarkable caves in all of Iceland was created by a once raging river of lava.