Tried out O Noir tonight. An experience where you eat a meal in pitch black. The servers are blind, so they were able to lead us and navigate the room pretty well.
The meal was set (ie. You first order in a room where there was light, pay for it, then you line up to be led into the dark room). I wasn't sure if by not seeing if it made the flavor of the food come out more - but it was definitely a very interesting experience.