Nestled within the Langham Hotel with walls of windows overlooking Fifth Avenue, Ai Fiori is the perfect perch for the expense account crowd. The handsome marble bar and lounge is ideal for a post-work drink; while large florals, leather chairs and square columns lure families into the formal dining room.Service is attentive, the linens are thick and every last detail is lovely. The menu boasts Italian favorites mingled with contemporary flair. The four-course prix-fixe is the best way to experience dishes such as radish carpaccio; pasta, like luscious strands of spaghetti twirled with sweet lumps of blue crabmeat and dressed with bottarga and Calabrian chili; and entrees, like seared duck breast composed with kumquat, radicchio and chestnut puree.