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

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

This spectacular track has run continuously since 1882.

One of the best places to see feral Colonial Spanish Mustangs in the United States.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

The fossilized remains of ancient California redwoods.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Spanning an elevation of 160 feet and containing 388 steps, this is Seattle's longest staircase.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

The skeletal white beams stand as a monument to religious dissent.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

Erosion and time have created a naturally-formed water park.

This super steep hike ascends 2,000 feet in less than a mile.

This dark, quiet forest on the outskirts of San Diego is dense with rumor and lore.

The haunting ruins of Jack London's dream house.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

New fungal and bacterial species call this deadly lake home.

Deep scars on the earth left by the Ice Age.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

A tunnel of hardened lava along Maui’s famous Road to Hana.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

A small metropolis of Pueblo cave dwellings have been carved right into the hillside of this national monument.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.