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

The United States Capitol's former columns still stand.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

It's not hard to see why the historic Peabody Conservatory of Music's library has been described as a "cathedral of books."

A museum dedicated to exhibiting remarkable outsider art.

Walk through the history of American pop culture.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

A toxic ghost town sitting atop a massive coal fire.

A modern ghost town whose inhabitants were driven away by the growth of nuclear power.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

World's first "penitentiary," meant to be humane, drove men insane.