Heritage tramway linking a Mallorcan town to its port.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

This famous archeological mystery may be an ancient example of movable type.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Only 380 kV Powerline in Europe not directly interconnected to the European 380 kV Grid.

Check the time in 145 countries at once with this East German relic.

A mammoth WWII anti-air defense tower has been repurposed as a hotel with a rooftop garden.

This monument to those fallen in the World Wars is accompanied by a U-boat that Germany bought for a Deutsche Mark.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

A ruined castle stands atop a hill surrounded by dragon lore.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

Eight naturally mummified bodies in glass coffins are housed in an underground crypt.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

When the rain falls, this drain system turns into a musical instrument.

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

Model Trains and Much More in Hamburg.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

The original shop where the iconic Belgian praline was invented.

A little sculpture with a large wardrobe.

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

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

The oldest continuously operating pharmacy in Europe.