This three-dimensional brick mural is the longest of its kind in the United States.

These otherworldly limestone formations jut out from the Kansas prairie.

Journey up the capitol building's cupola for an amazing view of Topeka.

Stories of sightless fish and ghostly cowboys are only a fraction of the legends surrounding this Kansas sinkhole.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

This dramatic rail curve was once the target of a failed Nazi attack.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

This church in Pittsburgh is home to the largest collection of religious relics in North America.

This might just be the TARDIS of bookstores.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

An abandoned stretch of highway, deteriorating next to the operational one.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A toxic ghost town sitting atop a massive coal fire.

This historic New Orleans cemetery is the final resting place of members of the Independent Order of Odd Fellows.

Introducing the Green Fairy to her fawning masses.

This New Orleans statue of a portly figure in a goofy hat pays homage to a classic of satirical literature.

An abandoned warehouse turned art sanctuary in New Orleans.

The state's oldest continuously operating museum houses more than 5,000 Civil War artifacts.