What: "The Knick" was founded by members of the Union Club who believed membership should be more exclusive.
Who: Your guess is as good as ours, this club has no website and its members refuse to reveal themselves or divulge any information about the clubs' amenities. J.P. Morgan was a past member, however.
Cost: You guessed it - it's a secret.
Where: 2 E 62nd St. (the only piece of information even these "knicks" can't hide)
[Photo via @dannysagernyc]