In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

An unrealized dream to wirelessly electrify the entire Earth.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

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

A Pythagorean funhouse that tries, successfully, to prove that math is the coolest thing ever.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Tucked in the back of this amazing antique store is an important piece of medical history.

One car at a time please.

Beautiful hillside Vermont cemetery with amazing funerary art.

True to its name, this bouncy walkway may be the world’s smallest suspension bridge.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

The Rio Lerma (Chignahuapan) in El Salto, Mexico, is one of the most polluted rivers in the world. It’s covered in white foam, and falling in can kill.

A safe space and resource for anything and everything relating to sex and sexuality.

The eccentric mansion of one the most popular horror authors of modern times.

This picturesque stream was up until recently the site of a ten story mountain of slag and sewage.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

Mysterious rocks that ring musically when struck.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

A toxic ghost town sitting atop a massive coal fire.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

A model home in the Medical Examiner's Office in which grisly death scenes are staged to train forensic investigators.