The first full-scale tunnel built in America is short but scenic.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Once a gas station, this flightless airplane beside the Old Dixie Highway now houses a barbershop.

This is one really big nut.

The world-record holder for the longest bridge stretching continuously over water.

The world's largest piece of copyrighted artwork.

This small shop walked so America could run on Dunkin'.

These three lighthouses played a fundamental role in the maritime life of Eastham.

In the power of this waterfall, Alexander Hamilton saw the potential for industry.

Seven golden statues rise into the sky from sculptor Victor Victori's New Jersey front lawn.

An abandoned munitions factory with a shot tower continues to wage war on the surrounding environment.

These early tent-shaped grave coverings are unique to Appalachia.

This park contains one of the largest concentrations of cedar glades, a unique and rare ecosystem.

Visit this playground of waterfalls, caves and sinkholes.

A historic grist mill and active sluice on the Black River.

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

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.