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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Climb inside an iron crystal magnified 165 billion times its normal size.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

A little sculpture with a large wardrobe.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Macabre astrological automaton clock dating to the late 1400s.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

1920's reinforced concrete church by architect Auguste Perret changes the face of modern design.

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

Natural history museum celebrating biodiversity with a parade of taxidermy animals.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

Dedicated to the art of hunting, with juxtapositions of contemporary art.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

This church sits upon a peaceful hill and a long, turbulent history.

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.

An icy lake tucked among jaw-dropping alpine panoramas.