A strangely curved lamppost stands tall over this avenue in Rotterdam.

This public toilet built in the famous Amsterdam School architectural style is a Dutch national monument.

Four giant movable street lights decorate this modern Rotterdam square.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

A nearly 25-foot concrete sculpture of Sylvette, Picasso's muse.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

A huge teapot illuminates a home for the elderly.

A striking memorial to the Jews of Leiden who were murdered during World War II is scattered throughout the city.

Atop this former dutch railway office sits an interstellar work of art.

Portraits of musicians line Oude Binnenweg, the jazziest street in the city.

These lights mark the area of Rotterdam that was bombed and burned in 1940.

A dream-like maze full of strange art, surreal spaces, and fantasy landscapes to get lost in.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

The Netherlands is home to a bridge printed out of reinforced concrete.

This vast World War II defense line was the site of a fierce battle.

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

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

This enormous steel tube is the biggest speaking horn in the world.

This monumental work of art symbolizes the coming together of a previously divided city.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

This impressive castle looms over small German town.

A haunting collection of sunken wooden barges litters this Italian river bend.

Centuries ago, red and white wine poured from the statue's breasts whenever a new Venetian ruler was elected.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.