Cipriani 25 Broadway
Who could forget the cold butter (and cold father-son drama) served up at the family's annual black tie gala in Season 1, Episode 4. Anyone who's been to a few similar events around the city would likely recognize the grand hall where it all goes down as Cipriani 25 Broadway, inside the landmarked Cunard Building. To be fair, I've never had a butter issue there.
Cipriani, 25 Broadway
[Photos via HBO]