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

This miniature take on the Kremlin is one Dutch man's retirement project.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

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

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

A former plague hospital turned medical museum.

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

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

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.

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

Oldest Museum of the Netherlands is a true cabinet of curiosities.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

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

The attic of a four-century-old canal house hides a clandestine church.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

Over time, this castle grew to encompass the entire island.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

This ornate church has survived Nazi and Soviet occupation, including a short stint as a Soviet-era gymnasium and cinema.

A vast and unlikely aviation museum kept alive for over 50 years due to one man's tenacity.

Built to ward off Napoleon's army, this city-sized abandoned Russian fort is now perfect for urban exploration.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

The widest waterfall in Europe is a natural wonder and one of the only places where fish are caught in the air.

These crumbling Latvian forts make for some haunting seaside ruins.