A tribute to one granddaughter's old apartment which now represents the whims of each visitor.

The legacy of an unsolved, gruesome murder rests beneath the spans of this historic bridge.

Man-made geyser that rises to the exact height of the Gateway Arch.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

An abandoned meat mecca now serves as an excellent locale for urban exploration.

Quirky water tower advertises the long-gone Brooks Tomato Products Co.

World's second largest particle accelerator, where nature reveals its secrets.

The oldest experimental corn field in America is still creating better ways to grow crops.

This historic Illinois "Muffler Man" has been converted from axe-touting lumberjack to rocket-wielding space ace.

This life-size bronze statue remembers the tallest recorded human in his Illinois hometown.

A mini Wrigley Field for mini baseball players.

This monolithic statue was erected in honor of Chief Black Hawk (even if it wasn't made to look like him).

Today this bizarre rooftop phone booth seems like a piece of kitsch but it was once used to spot disastrous storms.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

This erect, phallic geological spire wasn't always named so domestically.

The first declared National Monument in the United States.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

A popular rock that acted as a waymarker for American pioneers.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.