The highest point in Delaware is located under a trailer so this marker across the street will have to do.

World War II-era bunkers are hidden under the beaches of this picturesque park, which is still scattered with wartime watchtowers.

This museum glorifies the humble potato.

Home to the deepest rift anywhere on Earth.

Water flowed out of the town's unusual tree stump fountain in the 1930s, and the well still runs today.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

Launchpad for the US military’s dead mouse operation to battle millions of snakes.

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

The only completed wing of Utah's first capitol is filled with artifacts and odd stories about its past.

This former rail stop in Utah was abandoned, repopulated by some nostalgic friends, and now is home to a single DIY aviator who lives in a hangar.

Within the former ghost town of Cisco is a carefully restored tiny town with one resident and its own art residency.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Eat burgers beneath gargantuan taxidermy and thousands of dollar bills in Utah's oldest continuously-operating bar.

Oddly shaped rock formation, misassociated with a nearby utopian community.

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

Jurassic Park—A Still Life.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

The largest island on the great salt lake is home to curious creatures and strange stories.

Come for the speed, leave in love with the desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The stone marker that Mason and Dixon placed at the eastern end of the famous north-south border they surveyed.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Mysterious rocks that ring musically when struck.

A sewing machine tycoon built this miniature castle for the people and to beautify a lakeshore.