As the oldest continually operating restaurant in New York City, opened in 1827, Delmonico's is steeped in cultural, political, and culinary history. Eggs Benedict, lobster Newburg, and baked Alaska were invented here -- and are still served. Inside the stately mahogany-paneled dining room, tuck into a 20-ounce boneless rib-eye steak smothered with frizzled onions, dry-aged and spoon tender, and don't forget to order creamed spinach on the side. Reservations essential. Subway: 4, 5 to Bowling Green.