A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

This subterranean studio is filled with fascinating kinetic art.

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

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

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

A floating cat sanctuary on an Amsterdam canal.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

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

A beautifully eclectic mix of architectural styles.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

The beautiful baroque library of the Hapsburg empire.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

The final resting place for the remains of 143 Habsburg royalty.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Ride a dragon train into a world of dwarves.

Double spiral staircases are not unheard of, but they are very rare.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

The shell of a medieval fortress offers commanding views of the area it once protected.

Each year melting snow turns these Austrian hiking trails into scuba zones.

Visiting this café is like visiting the Austrian grandma you wish you had.

Underneath the city that invented pilsners are a series of historic tunnels that have been storing beer for centuries.

One of the Leiden's oldest pubs is also the birthplace of the Heineken star.

This annual harvest parade features intricate floats covered with fruits, vegetables, and seeds.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.