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

A memorial to the late U.S. Senator Paul Wellstone, who died at this location, along with seven others, in a plane crash in 2002.

The world's largest floating loon bobs in the lake to kick off an annual festival.

This tiny Minnesota city tried to secede from the Union as a last-ditch effort to fix its crumbling water system.

Nicknamed the "Grand Canyon of the North," this open-pit mine in Minnesota has a much shorter history.

An abandoned bus station transformed into a museum dedicated to the history of Greyhound Lines, in the place where it all began.

Where one of America's greatest songwriters lived before he was Bob Dylan.

A tour de force of a fountain, memorializing a man who loved fountains more than anything else.

This little-known collection holds everything from "Dracula" notes, to the manuscript of "Ulysses," to the forged works of Shakespeare.

This stone incorrectly marks the 35th parallel, causing some territorial kerfuffles.

The pan man stands as a testament to the functionality of American cast iron cookware.

A natural sandstone bridge hidden in the Sewanee forest.

Mysterious library of an infamous financier and spiritual seeker.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

Exhibits from an island in Lake Michigan are preserved in this hand-built cabin museum.

Once part of an extensive network of fire towers, this is one of the few remaining in this Wisconsin forest.

This odd-shaped relic from the 1964 New York World's Fair found its way back home to Wisconsin.

Egyptian Revival obelisks still rise over the old mine shafts.

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

This little barrel-shaped cottage by Lake Superior was once a cartoonist's summer retreat.

A unique gallery filled with art that is interactive, accessible, and generates a ripple effect of creativity

This grave marks the final resting place of pioneer John Chapman, better known as Johnny Appleseed.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.