France's high-tech, future-themed amusement park.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

This futuristic observatory at the top of the Pyrénées offers unrivaled views.

This bridge was constructed from the rubble of the infamous Bastille.

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.

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

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

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

The famous winding walk at Chartres is surrounded in mystery and myth.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's national museum of scientific and industrial instruments.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

France's most famous cemetery, with some of its most curious tombs.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Italy's third-largest Roman arena gives a peek into the underground operations beneath the ancient spectacles.

Some say this medieval church is where the poet Dante married his wife and also met the love of his life.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

A medieval weapon rumored to have been used by the brilliant poet himself.