A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

This abandoned Slovenian military barracks has become a punky-political art squat.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

The mummified relic of St. Antoninus.

Visiting this café is like visiting the Austrian grandma you wish you had.

Op-art architecture designed for happiness.

This sprawling bookstore spans four floors and has more than a million books in stock.

Astounding collection of coin-operated games and automata.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

One man's personal kunstkammer, museum and shop.

One of the most easily accessible examples of the rare 1960s UFO houses.

Go surfing on this urban wave, "hacked" by local surfers.

This magnificent museum claims to house the cranium of a disciple and the skull of a pope.

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.