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

Traditional 11th-century outdoor tannery.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

The deepest metro station in the world.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Macabre astrological automaton clock dating to the late 1400s.

Looming communist pillar with a Czech twist.

A little sculpture with a large wardrobe.

Cozy basement bar sports an inventory of over 2,000 beers.

Brussels' favorite peeing boy has a sister.

Climb inside an iron crystal magnified 165 billion times its normal size.

Large Hadron Collider and the Birthplace of World Wide Web.

Giant topiary dog once played a role in a terrorist bomb plot.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

A 15th-century granary that played the role of futuristic slave quarters in the world of 'Star Wars.'

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

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

3,000 market stands in five former Zeppelin hangars.

A black cat protests the City Guild in Riga's Old Town.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

Blitzkrieg bop your way through Berlin's Ramones Museum.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.