The bright red cars take travelers through breathtaking Tuscan scenery.

This medieval castle was reconstructed by Carlo Scarpa.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

German and American troops joined forces to defend this fortress during the strangest battle of World War II.

These delicate sand pyramids look like naturally occurring gothic spires.

A remarkable two-country morph, this town is part of Germany legally but is by all other measures Swiss.

A condensed piece of China floating in a Dutch harbor.

Museum dedicated to the terror regimes of Hungary.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This famous archeological mystery may be an ancient example of movable type.

Pilgrimage site for star-crossed lovers.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

The last bastion of Roman presence north of the Alps looms over a German town.

The European equivalent of the Hollywood Walk of Fame is slowly spreading over the entire city.

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

At the base of this tower, a plaque marks the original center point of the Netherlands.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

The tallest mountain in mainland Netherlands isn't actually very tall.

The location of the world's first telescope demonstration.

Inside this metro station is a section of the city's former medieval fortification.

A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.