A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Francis Julius LeMoyne built this crematory in 1876; he was the third person to be cremated here.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

It marks the spooky spot where the bodies of two young boys were found in the 19th century.

This unique creation was made by the largest manufacturer of Christmas bulbs in 1946 to honor those returning from World War II.

A tiny one-room church built after one man's prayer for healing was answered.

An almost life-sized elephant named Ms. Ellie greets visitors at this jumbo-themed museum.

Dozens upon dozens of boulders engraved with scripture tell the story of one man's troubled life.

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

Could it have picked a better place to land?

A living maritime paradox still floats in the same lake where it was built and resurrected... or was it?

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

"Where the ducks walk on fish."

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

Where the oil industry began.

For decades, it has disappeared and reappeared as water levels rise and fall.

This collection honors the iconic, and proudly American lighter that just won't quit.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."