The world's largest reflecting pool is just two centimeters deep.

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

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

Massive puppet-automaton machines created by French artist collective Machines de l’Ile.

A Gothic cathedral created from volcanic rocks.

Historic medieval fortified city in southwest France.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Science fiction's grandfather has a fittingly marvelous tomb.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Ancient paintings known as the "Sistine Chapel of Cave Art."

Legends surround this natural rock formation that looks like a Moorish king wearing a crown.

This multi-level, aqueduct-footbridge hybrid is one of the greatest works of the Spanish Renaissance.

Long tunnels run under the ancient chariot racing circuit to the tower.

An enchanting landscape of ancient sandstone structures eroded into otherworldly shapes.

These magnificently sculpted tombs represent Spain's own legendary version of "Romeo and Juliet."

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

Nordic giants resurrected from the sea and restored to their former greatness.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

Tiring of digging out the door to this church for every service, it was eventually abandoned to the sands.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

Old Danish castle immortalized in Shakespeare's Hamlet.

A natural wonder in south Denmark.