This modern tandoor eatery was once a canteen for Soviet farmers.

Underground monastery and fortress.

Remnants of successive wars and Muslim colonialism in the 11th century.

The observation point offers spectacular views of the ruins of an ancient Armenian capital.

At this snack-shack in the bucolic British countryside, you can still get a slice of socialism with your spot of tea.

Once a farm where patients tilled the soil, this asylum lost its workforce when overmedicating became common practice.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

Visit a secretive crypt before it crumbles to dust.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The marshy karst plain has reclaimed this beautiful 17th-century church.

Templar knights fleeing persecution are said to have left this sword in stone as a landmark in 1307.

This medieval oratory decorated in magnificent frescos was constructed after Charlemagne received a vision.

Bell tower juts out from a village buried under a lake.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This Italian foot path winds through the mountains via 52 individual tunnels.

This enchanting natural park is a magical example of a temperate rainforest in Europe.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Journey through a mesmerizing array of board games inside this museum.

This top-secret nuclear bunker hidden in a Bosnian mountain has been converted to a modern art exhibition space.

Austria's very first and only nuclear power station was completed but never used.

This former insane asylum now holds a pathological anatomy museum.

Dine amidst exotic plants at this former royal greenhouse.