The only structure left with direct ties to the Salem witchcraft trials of 1692.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

Kentucky, Tennessee, and Virginia meet at this point in the Cumberland Gap.

The only natural cave bath in all of Europe.

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

A tiny town’s tiny museum with some gigantic residents.

Massive rock sculptures formed during the time of the dinosaurs still stand undisturbed.

The inspiration for the Patagonia Clothing logo, Cerro Fitz Roy turns pink at sunrise.

Colorado's only active volcano last erupted around 4,000 years ago.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

This interpretive path lets you get up close and personal with dinosaur bones.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

Other-worldly rock formations and ancient fossils abound in this unique stretch of Nebraska badlands.

When an ancient supervolcano erupted, some of Nebraska's prehistoric animals were forever preserved in ash.

Inside this magical collection, you can buy recipes cooked up by church ladies, motorcycle clubs, and clowns.

The World's Largest Bull.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

An idle pastime becomes a record holder in Boys Town, Nebraska.

A fascinating collection of art made from petrified wood and fossils by two octogenarian twin brothers.