This cryptic monument honors a mysterious dead woman, despite her identity being lost centuries ago.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

The official motto of Luxembourg reminds passersby of the Luxembourgish commitment to their national identity and sovereignty.

This bell tower is the only one of its kind in the Netherlands and was a symbol of prestige.

These traffic lights celebrate the 100 year anniversary of the women's suffrage movement in Lithuania.

The largest coin pyramid in the world is a carefully balanced stack of over 1,000,000 pieces.

While this monument tile is shrouded in mystery it also marks the end of the longest ever human chain.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

A stately palace has been converted into the world's largest cannabis museum.

Things aren't quite what they seem at this mind-bending museum.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

This former Baroque palace on the historic Calle Montcada is a rare architectural gem and was once the meeting place of an aristocratic scholarly society.

This doorless 20th-century elevator doesn't stop or slow down.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

This former guildhall with a bacon-like exterior is now home to a museum covering 600 years of Antwerp's musical history.

A giant bug impaled on a 75-foot-tall needle.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

Amsterdam's Red Light District leaves little to the imagination.

The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

This poignant art installation raises awareness of violence against women.

A museum which takes visitors to the côté obscure of Paris.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

A bronze tribute to a legendary Californian, the self-proclaimed "Emperor of the United States."

Small on the outside, big on the inside, this church is an astonishing act of visual deception.