This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This interactive sculpture allows visitors to leave a message in case a friend passes by.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

What looks like an ordinary house from the outside is actually a rotating sculpture.

Oldest World War 2-themed museum in Western Europe.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

Incredible labyrinth of man made caves.

A beautiful maze marks where three countries meet.

A fascinating insight into daily life in the Eastern Bloc.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

This monumental work of art symbolizes the coming together of a previously divided city.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

The tallest stone dam in Poland was opened by Kaiser Wilhelm II himself.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

An ancient knight and a symbol of the city's freedom.

Split's smallest church, and one of its oldest, has been reconstructed inside the city's Roman walls.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A spectacular walk on the flank of a gorge.

Giant topiary dog once played a role in a terrorist bomb plot.

Bordered by forest on three sides and the ocean on the other, the Great Dune of Pilat is the highest sand dune in Europe.