One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Color-coded signs direct drivers on a network of routes designed to avoid Pittsburgh traffic.

The site of America's first commercial oil well essentially disappeared after the town went bust.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

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

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

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

The Binghamton area is home to six of the last remaining hand-carved vintage carousels.

A gigantic 10-foot tall stone man.

The world's tallest doric column is this Ohio monument to a naval victory in the War of 1812.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The spectacular collection of one of the world's best woodcarvers.

Take a drunken tour inside the world's largest known geode.

An experimental, automotive replica of Stonehenge.

This national park on the shore of Lake Michigan features remarkable dunes that lie at the heart of a Chippewa legend.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

Despite repeated attempts to make it work, this former mining town is now nothing but dust and memories.

A roadside collection of over-sized iron creations that are a bit more macabre than most.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."