A spherical "micro-nation" in the heart of Vienna.

The topiary maze at the Habsburg hunting lodge.

Macabre museum devoted to historical Viennese murders.

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

It's not a typo, now say it five times fast!

Cozy basement bar sports an inventory of over 2,000 beers.

An old trolley bridge was converted into a breathtaking garden bursting with colorful flowers.

Over fifty whirling pools left by the glacial age.

Brain collection and database that narrows the gap between man and animal.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

Started as a kitchen garden, now the second largest botanical garden in the world.

Home to 10,000 medical specimens including the remains of Rudolf Virchow's extensive collection of pathological specimens.

Antique frame collection with 2,400 frames.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An old department store turned Nazi prison turned artist commune.

Hundreds of trees made from glass bottles make up this forest on Route 66.

The "first cat," "first dog," and even a presidential pygmy hippo all get their due in this museum.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

One part local history, 99 parts gruesome haunted house.

Museum about life, death, and cannibalism in the Stone Age.