An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

A gorgeous stone viaduct crosses over a bucolic valley.

An extraordinary museum devoted to the pop art legend created by Slovak artists.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

Infamous and now demolished panopticon prison built by its former inhabitants.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.

This amazing abuela became a diehard metal fan late in life and an icon of Madrid's '80s rock scene.

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

Brussels' favorite peeing boy has a sister.

After a nearly successful attempt on Hitler's life, the conspirators met their fate in the courtyard of this Berlin building.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.

Abandoned railway line circling the city of Paris.

This bar and museum are devoted to the controversial comic book work of Kája Saudek.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

Monument to a suicide protesting the Soviet invasion.

The tunnel's elegant proportions keep you snug with no claustrophobia freak-out.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.