Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

This library and museum is dedicated to the life and literature of the Indianapolis native author.

The trunks of 3,000 year-old trees lurk beneath the surface of this crystal clear lake in Oregon.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

A coastal rock outcrop with mysterious inscriptions variously attributed to Native Americans, Portuguese, Phoenicians, Norse, and more.

Curious rock formations in a tiny Kansas state park.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

A lovely hidden waterfall right off the highway is well worth a stop.

A very big rock just plopped down in the New England woods.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

The pit stop from "The Texas Chainsaw Massacre" now serves beef and pork barbecue, not people.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

The notorious headquarters of a corrupt political machine.

A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

A Wild West jailhouse that slid down the mountainside.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

This shallow cave got its name from copious amount of human bones found inside.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

This famous Nevada gold mine, once a hotbed of Wild West shenanigans, is now open for tours.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.