This quarter-mile tunnel under the Bluff in Pittsburgh bends at a 45-degree angle.

Meet your friends, marry your true love, or tell your enemies to kiss your butt under this historic Pittsburgh timepiece.

When oil was discovered just outside of Pittsburgh, the city became home to this regional stock market.

Eternal resting place of the grave robber and murderer who served as inspiration for many of cinema’s famous madmen.

This university transit system is a 1970's vision of the future.

These modest Midwestern formations are kin to Niagara Falls' impressive cliffs, more than 600 miles away.

An extraordinary mixture of natural beauty and man-made phenomena.

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

This rare, carefully curated collection showcases the history of neon inside a grandiose Elks lodge.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

The decorations were inspired by an unlikely missing treasure.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

This playground sculpture of an icon from the past is dedicated to the children of the future.

A wild west land agreement was etched right onto this historic Idaho stone.

The mayor made the declaration in 2004.

A miner's handmade folk art fountains are tucked in the woods off a multilane highway. 

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

A collection of 16,000 antlers crammed beautifully into a small shed.

A true roadside icon standing on the same plains that the herds once roamed.

The first hand-illuminated, hand-written bible since the invention of the printing press.

"...I guess that was your accomplice in the wood chipper?"

The statue honors the booming birds Rothsay, Minnesota, is famous for.

14th century Norse artifacts in Northwestern Minnesota could have proved a Viking landing before Columbus.

America's largest viking stands in a Minnesota city that believes it was visited by the ancient nords.