A beautiful gorge filled with streams and waterfalls.

A ruined castle stands atop a hill surrounded by dragon lore.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Pilgrimage site for star-crossed lovers.

These elaborate gothic monuments honor Verona's medieval lords.

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

This medieval castle was reconstructed by Carlo Scarpa.

The largest bell in the world has been swinging high above a Cologne cathedral for almost a century.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

A memorial dedicated to those who lost their lives working in what is now a massive tourist attraction.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.

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

This Dutch windmill has its roots in an American invention.

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

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

This giant wire frame man sculpture is crouched in contemplation.

Building Men of War and Indiamen from Holland's Golden Age.

While most bridges allow roads to pass over water, this one allows water to pass over a road.

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

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

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

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