500 Things to Eat Before It's Too Late

What are the all-time best dishes America has to offer, the ones you must taste before they vanish, so delicious they deserve to be a Holy Grail for travelers? Where’s the most vibrant Key lime pie in Florida? The most sensational chiles rellenos in New Mexico? The most succulent fried clams on the Eastern Seaboard? The most memorable whoopie pies, gumbos, tacos, cheese steaks, crab feasts? In 500...