NOTE THIS IS PRIVATE PROPERTY NOT FOR PUBLIC VISITATION
The land where the VA Renaissance Faire is currently decaying was once owned by George Washington's mother, because pretty much everything in Virginia was owned by the Washington's at some point. The area the abandoned fairgrounds are located on is called "Sherwood Forest", because duh! The Ren-Faire itself operated from 1996 until it tanked from low ticket sales in 1999. The property has been decaying deep in the Virginia woods ever since.
It's a pretty epic abandoned fairground, with loads of huge buildings still standing in pretty good condition, though a lot more weedy than before. There's even an abandoned ship sitting in a moat. There are towers, a jousting arena, a bar with built-in kegs, and of course the obligatory graffiti and paintball vandalism.
Should you venture out to the fairgrounds, douse yourself in bug spray as the area is a notorious breeding ground for ticks. Oh yeah, and wear orange if you visit during hunting season.