A subterranean Japanese den beneath Downtown's historic Pershing Square Building — you enter under a suspended 5,500-gallon saltwater aquarium that gives the place its name. Mrs Fish is equal parts sushi restaurant, whisky bar, and art gallery, its walls hung with work sourced straight from Tokyo galleries. The format is choose-your-own: a five-seat omakase counter, a formal dining room, lounge booths, an extensive sushi and small-plates menu, rare Japanese whisky, and live music or a DJ pushing weekends late. Style-forward and a little theatrical — sushi as an immersive night out.