A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The Habsburgs' royal collections of art and wonders.

Baroque celebration of the end of the Great Plague of Vienna.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

The topiary maze at the Habsburg hunting lodge.

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

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

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

Nestled in a peaceful valley, this Armenian monastery may have been saved from Mongols thanks to the eyes of God.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

This series of Armenian caves held the oldest brain, shoe, and winery in the world.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

Centuries before the modern seismograph, Armenian monks measured quakes with this tilting pillar.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

A geological oddity topped with a 2,000-year-old pagan temple.

This hidden courtyard in the Andorran capital hosts a unique contemporary sculpture park.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

The largest Roman amphitheater in the Balkans once held over 20,000 people, but managed to lay hidden for hundreds of years.

According to a local legend, this old castle could only be built after a woman was immured in the walls.

What happens when you cross a mayor and a painter?

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.