If you missed Sunday's tour of the Williamsburgh Savings Bank in Fort Greene, you are shit out of luck. The building is being converted to condos, and it's going to be off-limits for awhile. The best we can do is offer these photo sets by Triborough and JayKayEss. The interiors are the real visual treat, but the view from the roof is also worth checking out-- particularly the shots showing the blocks being knocked down for the Atlantic Yards redevelopment. [Related: a couple of previous Gothamist posts with lots of WSB links.]
Photo above by JayKayEss.