This is the world's largest hamburger. There is a whopping 80 pounds of meat and 30 pounds of bun. If you'd like to order one yourself from the Denny's it is offered at, it costs $379. If you enjoy strangely oversized things like this, be sure to click on the link for 14 other crazy, humungous objects.
Link
I've seen this place mentioned a few times over the years; I guess they've been competing with other places to take the title of "biggest burger".
http://japansugoi.com/wordpress/japan-has-worlds-biggest-hamburger-136kg/