Old cabin-like homes in a rural community untouched by time are known for their vibrant and colorful window shutters.

A collection of items from a way of life that no longer exists.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

A giant portrait of an ancient king looms over the river.

Imperial palace of Emperor Galerius, the Emperor behind the worst Christian persecutions during the Roman Empire.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

A misnamed well, with a deep dark past.

A Serbian church lit by chandeliers made of weapons.

This dazzling Art Nouveau mansion is now home to the Modern Art Gallery Subotica.

Hamburgers are intensely proud of their tunnel beneath the river.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Model Trains and Much More in Hamburg.

A white Buddhist temple with a golden restroom.

Foreign invaders almost left this lovely Caucasus palace alone—almost.

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

Featured in one of the most iconic scenes in cinema history.

This 13th century Orthodox monastery is built right into the Moldovan cliffside.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

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

One of the world's smallest prisons boasts just two small cells.

An 800-year-old island castle in Guernsey's main harbor.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Single runway interrupted by a busy road that cuts across its middle.