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

Pennsylvania's own Roswell-style UFO mystery.

The inventor of a number of hybrid corn species is immortalized with a field of giant corn.

It took more than 20 years and a sharp eye for one man to assemble this quirky collection.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

This moving cemetery sphere is a slowly rolling stone.

Featuring one of the most complete and original collections of Presidential memorabilia, this is the site of the last front porch presidential campaigns.

This presidential tomb was not dedicated until years after Harding's death due to personal controversy.

This shrine to McDonalds' most iconic sandwich holds a 14-foot tall burger.

This Old Testament garden features 100 plants from biblical times.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

All that remains of a gigantic earth-moving machine.

The pop art icon's gravesite is broadcast 24 hours a day on his museum's website.

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.

The crash of this great airship signaled the beginning of the end for dirigibles.

An office built to look like a giant basket.

A favorite of Amelia Earhart, ranking among those rare bridges that can be crossed without changing sides of the river.

Could it have picked a better place to land?

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

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

Deep scars on the earth left by the Ice Age.