Beer lovers thirsty for knowledge can now visit a museum devoted to the world's largest hop-growing region.

A museum-like shop that has been producing clogs, brushes, and ropes for nearly 200 years.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

The largest flower auction house in the world.

Colorful and chaotic stacked hotel in North Holland.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A set of seven houses, each built in a style that represents a European country.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

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

A floating cat sanctuary on an Amsterdam canal.

You would never come across this tiny green oasis if you didn't know it existed.

This bike path was sunk below water level for maximum wonder.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Berlin's old airport.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A narrow passage next to a cafe leads to a courtyard exploding with murals, tags, and paste-ups.

The most visited, and possibly most controversial, museum in Germany.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

It's good luck to be mocked by this monkey.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

A former ironworks that was the first UNESCO industrial site.