An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

France's national museum of scientific and industrial instruments.

France's most famous cemetery, with some of its most curious tombs.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

One man's quest to collect artifacts from every aspect of human life has resulted in this eclectic Argentinian museum.

A bright little alley in La Boca is a part of tango history.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

A series of waterfalls so massive they straddle the border of Argentina and Brazil.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

A diverse collection of wax, bone, papier-maché and mummified relics.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

Because sometimes the most efficient route from A to B isn't a straight line.

The design of the Palacio Salvo has been described as "a lighthouse on top of a building."

An epic sculpture depicting a wagon and straining oxen.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

One of Catholicism's four major basilicas has a series of papal portraits that are said to predict the end of the world.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.