At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The ruins of a medieval castle that once belonged to one of the most powerful families in the Netherlands.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

Survival capsules find a second life as a unique hotel.

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

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

This museum inside Amsterdam's largest cemetery explores how people deal with death.

This unusual elevator doesn’t stop or slow down.

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.

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

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

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.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

Colorful and chaotic stacked hotel in North Holland.

A beautiful maze marks where three countries meet.

Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

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

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

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Museum preserving torture methods from the past.

The world's largest talking cow would like to tell you about the benefits of 100% Wisconsin dairy products, if only she still could.

A roadside spring pooling in an old bathtub where anyone can stop and sip.