A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

One of the last umbrella repair shops in Paris upholds the nostalgic art of umbrella making.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

Former hunting lodge of a duke who was an avid collector of impressionist works.

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

This museum in a Paris apartment gives a unique look at the iconic French singer's life.

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.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

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

Cozy basement bar sports an inventory of over 2,000 beers.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

A beautifully eclectic mix of architectural styles.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

A floating cat sanctuary on an Amsterdam canal.

Cat art as far as the eye can see.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The world's only museum devoted to the wonders of fluorescence.

The steepest classic funicular in the world glides along a dizzying incline.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.