Denny's Beer Barrel Pub in Clearfield, Pennsylvania has offered a 6 pound hamburger, named Ye Olde 96er (6 pounds = 96 ounces) since 1998. It comes garnished with 2 whole tomatoes, 1/2 head of lettuce, 12 slices of American cheese, a cup of peppers, 2 whole onions, plus large quantities of mayonnaise, ketchup and mustard. No one has been able to finish one.
http://www.dennysbeerbarrelpub.com
---Looks tasty!