One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

The oldest monument in Marrakesh and the city's only surviving example of Almoravid architecture.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.

One of the most spectacular canyons in the world.

Amsterdam's Red Light District leaves little to the imagination.

The largest airborne operation in history was launched to capture this bridge.

The cutest way to stay safe in traffic.

This large open-air museum showcases the ordinary lives of the people of the Netherlands and pre-industrial crafts and practices.

Located inside Hoge Veluwe National Park, this museum began as the private collection of a prominent female art collector.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

This unique sculpture proved invaluable when it saved a train from careening off the tracks.

The Netherlands' first car tunnel has an unusually rectangular shape.

The location of the world's first telescope demonstration.

A nearly 25-foot concrete sculpture of Sylvette, Picasso's muse.

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

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

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

The tallest waterfall in the Netherlands is a lovely, stepped feature that is only 50 feet tall.

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

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

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