Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Pennsylvania's highest point is spotted with boulders which were pushed to the surface by nothing but cold.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

The house that Frank Lloyd Wright "(shook) out of his sleeve at will" at the age of 86.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

The home and studio of a visionary woodworker now stands as a museum and example of his artistic genius.

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

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

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

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