Forget the 18th Century for a few minutes. Step back into this 1950s-style malt shop on the edge of Merchants Square for a burger, hot dog, or frozen custard. Blue Plate specials—Salisbury steak, shepherd's pie, lasagna—will satisfy the hungriest tourist. Retro touches such as photographs of pre-Rockefeller Williamsburg and old newspaper clippings add to the fun.