River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

Indiana's first constitution was drafted in the shade of this elm tree in the summer of 1816.

Also known as the Osaka Garden, this garden was originally built in 1893 as part of the World's Columbian Exposition.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

You can get anything you want at the former site of the restaurant immortalized by Arlo Guthrie.

The highway's southernmost spot is a beloved local attraction.

An unusual statue in Wisconsin of the first daily comic strip character.

Honoring the star of the “The Bob Newhart Show” which took place in the city of Chicago in the 1970s.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

What if the cure for all that ails you was as simple as repeated exposure to low-dose radon?

These murals have been brightening a Chicago beach for more than 30 years.

An enormous park-like oasis, full of famous Chicagoans' graves.

The rodent-shaped sidewalk imprint that earned worldwide media attention.

The last remnants of a lakeside airport that was bulldozed overnight by the mayor of Chicago.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

An abandoned town is hidden in Great Smoky Mountains National Park.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A historic ballroom host to famous performers from the big band era to 1980s rock.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

This graveyard is home to the so-called "Witch's Circle."

A relic of the Cold War in Chicago.

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

How did a 2,000-year-old Roman column find its way to a Chicago park?

In 1998, Larry Page and Sergey Brin briefly ran their fledgling company from this Silicon Valley garage.