Its collection contains relics from the devastating disaster that set the town ablaze.

Funhouse of found art and participatory sculpture.

20,000 pieces in a Frank Gehry-designed building.

When flour explodes, it's not a pretty sight.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

Find out what it sounds like when doves cry at Prince's recording studio estate turned museum.

The spaceship-like theater, which is still in use, was one of the most popular exhibits at the 1964 New York World's Fair.

Statue dedicated to the star of an old television show.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

The world's largest fully steerable radio telescope.

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.