These ancient sacred grounds granted amnesty to those who managed to reach them.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Less a museum than a bizarre fantasy world created by artists and engineers.

A Route 66 filling station that was designed to resemble the Hagia Sophia, and is now the symbol of an arts district.

A half-size replica of the World Trade Center towers above Tulsa.

An acoustic anomaly with a mysterious cause.

This ancient settlement contains some of the largest earthen mounds in North America.

The world-record holder for the longest bridge stretching continuously over water.

The peaceful space is adorned by paintings by the famed abstract artist Mark Rothko.

An oddities shop packed with twisted treasures inspired by Oscar Wilde and Edgar Allan Poe.

A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A modernist landscape of water and sci-fi concrete.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Three hundred years of preserved Spanish colonial history in San Antonio.

Hot Doug's "Hot Dog" Stand.

Kwanu'sila the Thunderbird has been silently watching over Chicago for more than 100 years (kind of).

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Huge abstract sculptures of the Puerto Rican Flag.

This titanic Catholic church in Chicago is also a refuge of the fictional cult-favorite wizard detective Harry Dresden.

Partially submerged Buddha heads freckle Chicago’s neighborhoods.

Orthodox church partially financed by Tsar Nicolas II.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.