A UFO-shaped event building originally intended to be a science museum showcasing the future.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

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

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

A unique collection of gilded age mechanical pianos.

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

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

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

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

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

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

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Peek through a transparent pyramid and drink in the mountain made of books.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Museum preserving torture methods from the past.

The world's only museum devoted to the wonders of fluorescence.

A curious cave church carved into the face of a cliff.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

There is a mouldering Jewish cemetery hidden away in the capital of Moldova.

This 50-foot-deep sinkhole created in the 14th century is home to rare plants and fungi.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This unique building in the main square stands out among the city's typically Baroque architecture.

Enigmatic tombs and cave dwellings on the outskirts of a rural village.