This elaborate towering structure was once famed for its revolutionary height.

Pennsylvania's own Roswell-style UFO mystery.

Yo, Adrian!

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

A failed piece of Orientalism has become the proud symbol of a community.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

This Philly cemetery is the eternal home of many famous area residents, including Rocky Balboa's wife.

Dr Barnes' $25 billion private collection of art and arboretum.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

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

A toxic ghost town sitting atop a massive coal fire.

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

Home to the only outdoor municipal elevator in the United States.

These machines have been collecting dust for decades.

10,000 flowered plants bloom in the City of Roses.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

Bridges, terraces, and replicas of historic structures all built of rock and petrified wood by one man.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

You might know it as the Overlook Hotel, but the inside is not going to be familiar.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

The magic's in the hole!