Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

Hundreds of hidden passageways weave through the old quarters of Lyon.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

After immigrating to Paris in the 1970s, two brothers from Laos built a grocery store empire.

For more than a century, Parisians have come for affordable dishes in a grand converted train station.

This lesser-known Frank Gehry building houses a treasure trove of cinema history.

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

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

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

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

This massive library holds what was once the largest book collection in the world.

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

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

A museum that chronicles the history of the Nuremberg Trials for Nazi war criminals in the building where the trials were once held.

This strange sculpture depicts a giant nightmare hare crushing a man to death beneath its colossal bulk.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

A famous big wave from Japan serves as a tribute to the victims of the disastrous Elbe flood.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.