An underground magnet for ever-changing street art.

Visit the monolithic tomb of America's most famous general.

The hallucinogenic center of the ancient world.

This historic black and white monastery is one of Bulgaria's architectural jewels.

A striking symbol of the Bulgarian capital.

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

A colossal floating restaurant built to look like a ancient Chinese imperial palace.

The once highest point in China blends symbolic design with a kick of adrenaline.

Although resembling a grand Buddhist temple, this structure is actually the largest mosque in China.

The ancient settlement attracts tourists from all over looking to learn about the Chinese vision of the afterlife.

This smaller cousin of the Forbidden City has gone from ancestral sacrifice to tourist's whispers.

The most famous location in China was home to whole dynasties worth of imperial rulers.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

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

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

Considered by many to be one of the most dangerous highways in Alaska.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

The northernmost truck stop in the United States.

This gravelly, dangerous highway is the only road in the United States that leads to the Arctic Ocean.

This general store is a one-stop-shop for workers at the Prudhoe Bay oil field.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

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