Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

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

The world’s first interactive human body museum also serves as a chair for a giant orange man.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

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

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

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

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.

Beasts and branches swirl in sandstone carvings, interrupted by one strange creature.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

Europe's largest prehistoric mound – burial site of a legendary king?

Catacombs turned marketplace.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

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

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

Villas that once served as playgrounds for the rich now fall away in decay.