Otherworld Excursions
http://www.behemoth3.com/otherworld/
Abandoned Military Base Getaway Weekend
John Tynes's game designs (Puppetland, Unknown Armies) and novels (Delta Green: Rules of Engagement) are legendary among fans of modern horror. John's weekend excursion in the Pacific Northwest will take you from the intensely weird, crumbling ruin of a naval defense facility to the rooms of an aging castle that's rumored to be haunted. And then the roleplaying will begin.
That has to be one of the coolest ideas for a guided tour EVER.