This erect, phallic geological spire wasn't always named so domestically.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A beautiful geyser under environmental threat.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Series of storm drains connected to a dark urban legend.

Rediscovered after a century, the father of the American Navy was reinterred in something dredged up from Davy Jones' Locker.

How this Pine Barrens hill got its name is uncertain, but on a good day the view from the fire tower is crystal clear.

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

Philadelphia boasts one of the best — and most often overlooked — traditional Japanese gardens in North America.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

A diorama of the Civil War, fought by cats.

Mysterious rocks that ring musically when struck.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

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

In which a local geological marvel becomes a quaint roadside attraction.

An Olympic hero stripped of his medals is buried in a town he never visited, which took his name after his death.

A field of nothing but boulders which resembles a giant's gravel driveway.

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

Dedicated to the art and science of glass in equal measure, this space is as much laboratory as museum.