Mothballed for 3 decades, in 2006 this 200,000 square foot Moorish Revival castle in the Mission was purchased for Kink.com, the world's largest producer of S&M pornography!
With a mission statement of "We seek to demystify and celebrate alternative sexualities by providing the most ethical and authentic kinky adult entertainment", Kink.com pays homage to SF's historical and current mantras of ethical commerce and sexual freedom.
Otherwise, the Armory is a half block in size, and highly visible from 101. The massive "Drill Court" is purportedly being "modernized" for community events. Tours are available for those over 18 (if that doesn't go without saying?) on a variable afternoon schedule.
For those looking to break into the business, Mister S is a good stop. And for anyone needing a break from the action, Zeitgeist is only two blocks away :)
Address: 1800 Mission St, SF
Website: http://www.sfarmory.com/