The beauty of urban decay, hiding some dark secrets.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

These fantastically named natural pools look like something out of a Scottish myth.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Olfactory delights in San Francisco's Botanical Gardens.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

The oldest hotel in the world has been operated by the same family for over 1,300 years, even catering to samurai.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

One of the largest, oldest, darkest, quietest motel rooms in the world.

The remains of diamond fever taken over by the desert.

This abandoned amusement park was built on a site with a dark history.

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

A spectacular cave and a beguiling lake.

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A few dilapidated structures are all that remain of this deserted former silver mining town.

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