A natural gas leak provides a flickering flame beneath a waterfall.

All that remains of one of the Civil War's more deadly POW camps is a simple flagstone.

The little-known final resting place of one of America's greatest writers.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

This tiny man looms large over downtown Charleston.

A museum commemorating the Donora Smog, which killed 20 people in October 1948 and sparked national outrage over air pollution.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

The museum calls itself the "National Museum of the Paranormal" and is full of eerie oddities.

True to his word, George Swanson is buried in his white 1984 Corvette.

This museum is dedicated to the first coast-to-coast highway.

The universally beloved children's television figure is interred on a high hilltop in one of western Pennsylvania's oldest cemeteries.

Pennsylvania's own Roswell-style UFO mystery.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

An abandoned Victorian-era amusement park is rusting away amidst luxury houses.

This Colorado fire station has been in continuous operation for more than a century.

Final resting place of a 19th century gold prospector and convicted cannibal.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

A museum dedicated to the mysterious cryptid.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.