This tower once served as a radar station during the Cold War.

Eat the ultimate iteration of Portugal's most beloved pastry.

Sip cherry liqueur at a bar dating back to 1840.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

This collection of 80 polarizing foods aims to challenge your subjective notions of repulsion.

A huge teapot illuminates a home for the elderly.

Copenhagen's celebrated theme park and gardens.

Old Danish castle immortalized in Shakespeare's Hamlet.

One man's remarkable private collection of art from around the world.

"Portugal's Stonehenge" is made up of nut-like stones aligned with the heavens.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

Four giant movable street lights decorate this modern Rotterdam square.

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

An early 19th-century English style garden hidden in the Rotterdam cityscape.

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

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

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

The Netherlands' first car tunnel has an unusually rectangular shape.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

A modern reimagining of a medieval city gate.

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