This extraordinary, multi-pillared monument depicts the fascinating history of Georgia.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

A cylinder monument with a spectacular vista commemorates a friendship that some say never existed.

Beloved children's TV characters freckle the German city's streets.

This historic stone bridge has an entire neighborhood clinging to its sides.

Terrifying derelict military hospital once housed a recuperating Hitler.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

A six-story, asymmetrical tower filled to the brim with scientific experiments.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

This enchanting mountain plateau celebrates spooky local folklore.

A strange rock formation with numerous legends trying to explain it.

The medieval institution is home to the precious treasure stolen in World War II in one of the greatest art thefts of the 20th century.

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

Volkswagen's dedicated museum dives into the complex history of one of the world's best known cars.