This stained glass window designed by Tiffany Studios is hidden behind the circulation desk of a public library.

This relic of 19th-century infrastructure is one of the few remaining coal gas storage tanks in the U.S.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

A virtually untouched "home on the hill" for the flora and fauna of Rhode Island.

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

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

This locally-famous crevasse in New York State is icy all year round.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

The monument dedicated to Phineas Gage in the town where his accident happened.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

A man used his Civil War-era fortune to build this sanctuary in memory of his wife.

The small burial plot is located in a mall parking lot.

An eccentric playboy's astounding natural history collection.