This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

This building features dozens of faces along its facade, although one is a bit chilling.

The mummified relic of St. Catherine sits forever on a golden throne.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

Berliners converted a bombed-out, disused lot into a community-run urban farm with its own cafe and bar.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

This plaque marks the former home of one of the first women physicians in the Netherlands.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

This bronze statue of Martin Luther King was placed in the park without permission.

Amsterdam's former hotspot for public executions and dissections.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

A recreation of pop art pioneer Eduardo Luigi Paolozzi's London studio.

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

This marine reptile was discovered by one of the 19th century's greatest fossil hunters.