A sharp bend in a dramatic river canyon cut through red rocks.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

Perhaps the tiniest sculpture in Saint Petersburg is a little bronze finch inspired by a song.

A city block packed with whimsical sculptures that seem to be plucked from a tiled fantasy world.

The past, present, and future of Russia's signature alcohol is remembered in the world's only museum dedicated to the starchy spirit.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This monument celebrates this shopping district's past history as a feudal silver mint.

The apartment building where JFK's assassin lived after defecting to the Soviet Union.

A collection of trees from various corners of the world call Stockholm University home.

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

This futuristic German television spire is actually the world's largest digital clock.

Twisted buildings adorn the banks of the Rhine river.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

2300-year-old Roman road connecting the empire.

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

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Louise Bourgeois' 30-foot-tall steel spider sculpture.