Mind if we get a good local legends thread going? I always think that folklore like this is the scariest.

Mine is in Clifton, New Jersey and it's known as the Gates of Hell. Copy and pasted from the Weird NJ site...

"They would tell stories of people entering these tunnels and never returning back to daylight again. Satanic sacrifices, bones everywhere, decaying carcasses, and upside down crosses, anything dealing with the darkness in human nature was supposedly down there. Perhaps most chilling to me though, were the stories of a secret room many layers under the ground. This room was only to be entered if you possessed the powers, which would enable you to lift axes that weighed thousands of pounds and blocked the door. Inside this room was a dungeon that housed a glowing human skull, or so it was said. There were supposedly seven layers of tunnels, and the lower you got, the closer you came to meeting the Devil himself face to face."

Though I've never been there, my friends have, and they all said it was the most terrifying experience of their lives. While they didn't hear or see anything, they all said it has an atmosphere of true evil in such a benign place

Here's some info, experiences and videos on it...
http://www.weirdnj.com/index.php?option=com_content&task=view&id=81&Itemid=28
http://www.youtube.com/watch?v=YBsyDYVWq_8
http://www.youtube.com/watch?v=GZ8JRFuSOmY
http://www.reddit.com/r/nosleep/comments/h6k07/weird_nj_experience_gates_of_hell/