The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

A piece of John the Baptist in the American heartland.

This abandoned prison castle has become an imposing gallery of graffiti art.

This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

A bit of retro transportation flair preserved in the world's largest department store.

Avoid gangster interaction while window-shopping.

Visit the monolithic tomb of America's most famous general.

The "Seinfeld" diner.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Every equinox this Maya pyramid puts on a spooky ancient light show.

World's largest bell sits on the grounds of the Kremlin in Moscow.

Former headquarters of the KGB.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This replica of the Greek structure is in the heart of Nashville.

A semi-scholarly approach to sex.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

Towering basalt columns, a creation of fire and ice.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A century and a half of research in the sciences and natural history, still going strong.

The key to turning shifting dunes into the green oasis of Golden Gate Park.

Faceless white figures loom over the city from the rooftop.

Recovered from the brink of extinction, at home in the Financial District.