Despite violent work crews and massive delays this abandoned canal tunnel was built to last into the modern day.

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

This one-room cabin where the young colonel slept during the French and Indian War.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

A larger-than-life statue of America's favorite sundae marks the place it was invented.

An American flag was erected for every day that passed during the Iranian Hostage Crisis.

An abandoned railroad tunnel transformed into a creepy path for hikers and cyclists.

Kentucky's longest operating jail is now a spooky spot to spend the night.

The highest point in Virginia can only be reached by passing through ponies and flowers.

This tower was once used to create ammunition for early settlers.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

Dedicated to the history of the health sciences.

Oldest unrestored plantation house in America that is open to the public.

One of the oldest living oak trees in the Southeast.

Paths are maintained, but trees have taken over plots.

This recently rediscovered Civil War-era submarine was the first to ever sink an enemy ship.

The 25th President's marble casket can be visited in this classical Ohio tomb.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

A well-preserved relic of the industrial age steel and iron works that dotted West Virginia.

This former fire tower found new life as a communications hub complete with a scenic overlook.

Two gems of Beaux Arts architecture that have been sitting vacant for years.

This public park was the site of the largest civilian disaster of the Civil War.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

Within this beautiful Pittsburgh cemetery, a unique headstone bears witness to one man's eternal love for Jaws.