Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

The resting place for anonymous victims of the Danube's dark waters.

The topiary maze at the Habsburg hunting lodge.

Dine amidst exotic plants at this former royal greenhouse.

Macabre museum devoted to historical Viennese murders.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

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

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

An unusual double-stelae obelisk with ancient and mysterious origins.

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

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

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

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

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

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

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

Right up until the 20th century this network of man-made caves was the biggest village in Eastern Armenia.

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.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

Nestled at the southern end of the Bay of Vlore in Albania resides ruins that contain Illyrian, Greek, and Roman influences.

A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

Once a safe haven for locals engaged in blood feuds, this 400-year-old fortified tower is now a museum showing what life was like for those lying in wait within its walls.

A museum dedicated to secret surveillance.