Originally a short story written by Washington Irving, published in 1820, tells the story of a headless Hessian Trooper who "rides forth to the scene of battle in nightly quest of his head" which he 'lost' thanks to a stray cannonball round during a 'nameless' battle of the Revolutionary War.
On the night of Halloween, the Headless Horseman chased Ichabod Crane, a Connecticut schoolteacher, through the Tarrytown NY subsidy called Sleepy Hollow, and especially, over the old bridge recreated below.
Irving is burried in the Sleepy Hollow Cemetery, along with Samuel Gompers (founder of the AFL), Andrew Carnegie (yes, that one), Walter Chrysler (guess what car company he founded)... and thousands of others.
This is seriously the first, if not only, cemetary that I've been to and NOT been a little weirded out by. It's incredibly peaceful and almost like a park. You can even FISH there! For more information on the place, you can go to http://www.olddutchburyingground.org/ and http://www.sleepyhollowcemetery.org .
The original bridge is long gone, but this is a replica of the bridge that the Headless Horseman chased Ichabod Crane over. When a car drives over it -at any speed- it sounds like the clap of thunder. More like a cannon actually.