This Upstate New York park squeezes a lot of history into its two-acre triangular space.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

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

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

A community of collapsing homes more than a mile out from the Florida coast.

Over 120,000 curious objects that have shaped our modern world.

Perhaps the most scandalous statue of America's first president.

At this Minnesota state park you can easily wade across the source of the mighty Mississippi.

These crudely shaped folk giants may be the the second most photographed statues in the U.S.

When you can afford only half a road, you build only half a road.

A winding district gerrymandered into the shape of a mantis.

The national park was once a plantation estate.

Part of a WWII submarine is lurking outside the Washington Navy Yard parking lot.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

A haunting exhibit in a wildlife refuge center highlights threatened species and the conservation efforts needed to save them.

One of the largest artillery pieces in the world sits in a Washington D.C. parking lot.

The record holder for the world’s largest peach.

This high point in the Great Smoky Mountains is said to be home to the chief of all bears.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

Once America's longest-manned military fort, now an abandoned hulk.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.