A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

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

One of Amsterdam's narrowest houses is located right across the canal from its widest.

Amsterdam's former hotspot for public executions and dissections.

Europe's official "zero-level," the equator of elevation.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

The last of Amsterdam's original sea level markers remaining in place.

The former headquarters of history's oldest megacorporation.

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

An underground city of salt.

Real bones which are said to have belonged to a Polish dragon.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

Large Hadron Collider and the Birthplace of World Wide Web.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

Standing atop 2nd-century Roman ruins, this church is one of the oldest and most iconic in Old Cairo.

This unique building in the main square stands out among the city's typically Baroque architecture.