This maze-like slot canyon is a unique gem within an already fascinating geological area.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

This once-palatial plantation may have been the site where a draft of the Declaration of Independence was written.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

A tribute to two brothers' artistic endeavors.

A county library in rural Ohio houses one of the finest mineral collections in the world.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.

The largest ancient burial mound in Ohio.

The largest earthwork effigy in the world.

A slab of sandstone covered with mysterious 1,000-year-old rock carvings from a vanished North American culture.

In this relatively flat state the highest point is an honored place.

These sub-farmland caves are home to a majestic stalactite known as the "Crystal King."

Rare recess caves fill this unbelievably beautiful Ohio park.

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

A gas station has taken the place of the home of the 19th American President.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

A retro walk through the history of the tube.

A bronze statue of Mister Rogers in the neighborhood where he grew up.

This Pennsylvania cave holds evidence of the oldest known inhabitants of North America.

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

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

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

Inside this 150-year-old barn turned antique shop is a vast array of items for curios hunters.