Catacombs turned marketplace.

One part local history, 99 parts gruesome haunted house.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

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

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

A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

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

A bridge that has seen many reiterations over its lifetime.

A condensed piece of China floating in a Dutch harbor.

An icon of International Style architecture on the outskirts of Rotterdam.

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

An art installation memorializing a tram stop, which became a tram stop.

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.

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

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

A modern reimagining of a medieval city gate.

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

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

A dramatic art installation features a BMW flying out of a building in Rotterdam.

A giant floating rubber duck-bunny painted with a different design every year.

A statue of the second-tallest Dutchman in history.

A true Valhalla for cactus and succulent lovers.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.