This former estate of a fascist leader is now a burnt out ruin leading to a system of secret tunnels.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

Where the lovelorn find a home for their sentimental keepsakes.

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

This Danish park has celebrated the American independence day since 1912.

An Elvis superfan built Denmark's own version of Graceland.

Art Nouveau painter Alphonse Mucha spent 18 years creating these monumental paintings of Slavic history and mythology.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

Bohemian paradise covered in majestic forests.

Looming communist pillar with a Czech twist.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

Sky ships, planes, and portraits left as unique tokens of hope and thankfulness.

This modern museum of Mediterranean culture is surrounded by a surreal concrete honeycomb.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

The only museum with its curator—and her pets—buried inside.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Venice's island of the dead.

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

100 year tradition of fist fights, marked by marble footsteps.

Venice's "Island of the Mad."

Go inside to really appreciate this 500-year-old technological masterpiece.

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

A place to see how French aristocrats lived in the early 1900s.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.