This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

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

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

A wonderfully strange collection of 500+ stuffed frogs doing people things.

Now abandoned, the world's first torpedo factory is crumbling into the sea.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

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

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.