The oldest Buddhist monastery in Mongolia has survived centuries of invasions, political shifts, and religious purges.

The fairy tale castle of the "fairy-tale king."

The house that took a plunge into the facade of a museum.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

An exquisite Baroque church in Vienna's old town.

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

Op-art architecture designed for happiness.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

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

The beautiful baroque library of the Hapsburg empire.

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

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

An homage to the humble watering can.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

Fantastic views and thousands of love locks.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

Legendary site where an evil bishop was devoured by rodents.