One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Sofia's legislative center is continuously reinventing itself.

Rock carving created 1,300 years ago 75 feet off the ground.

"Holy Wisdom" overlooks the city that became its namesake.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Rome’s legendary peephole vista is also a former Crusader stronghold.

It houses the remains of a 17th-century version of the Titanic.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The world's largest model of our planetary system.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

A hidden bathhouse in one of Stockholm's oldest and busiest neighborhoods is open to anyone who can find it.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The world's biggest floating museum in Gothenburg, Sweden.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

Home to three historic ships from the age of Vikings.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

A forest of immensely tall and unusually straight oak trees planted nearly 200 years ago to build naval ships that never came to be.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.