A group of artists transformed this desolate city alleyway into an outdoor gallery of street art.

This striking art museum holds an amazing series of curiosity cabinets.

Statue dedicated to the star of an old television show.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Designed by Alfred Caldwel, this landscape showcases his vision of a native garden.

A hot dog stand where the heads are just as hot as the dogs.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A Japanese temple, old German townhouses, and public chess tables offer a peaceful escape from the bustle of the North Side.

No one knows how many bodies are in this vault in a Chicago public park.

The location of the world's first telescope demonstration.

This large copper bolt represents the benchmark for measuring sea levels in most of Europe.

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

A line number in Amsterdam that will likely never be used again due to its tragic history.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

This museum features over 100 playable pinball machines, some dating back to the 1850s.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

A miniature city, once ruled by the Queen of the Netherlands.

The largest 19th century panorama in the world still in-situ.

Rumored to have been frequented by Vincent van Gogh, it's the only remaining genever producer in the Hague.

The grave of the famous painter is marked by a simple stone in the ground.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

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

The former headquarters of history's oldest megacorporation.