The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

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

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

The tiniest tiki room in San Diego.

This simple highway curve has become a comedic pilgrimage site.

A world-class observatory in the California desert.

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

San Diego's most historic and haunted home.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

2300-year-old Roman road connecting the empire.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

This expansive bridge in the Canadian wilderness was originally just built for friends.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The ghost town that ended up on Ebay.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A collection of 20th-century automata, penny arcade games, and musical contraptions.