This unique bridge physically lifts a piece of the road into the air to let boats pass by.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

Atop this former dutch railway office sits an interstellar work of art.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

Lombardy poplars planted to imitate the size and shape of the Cathedral of Notre-Dame de Reims.

This steel frame is a skeletal mirage of a lost 16th-century stone building.

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

Yup, that's a 330-foot yacht passing over the highway.

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 35 species live and some of them roam free alongside their human visitors.

A miniature city, once ruled by the Queen of the Netherlands.

A grassy pyramid named after a French battle.

Incredible labyrinth of man made caves.

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.

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

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.

Immortalized by artists, this church incorporates a medieval lighthouse into its shoreside structure.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

A natural arch carved by a river gave its name to the so-called "Cave of Forgotten Dreams."

A sanctuary for wolves in a community which once trembled in fear of the murderous "Beast of Gévaudan."

These quaint French houses dangle precariously over a precipice.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.