Sacrifices, initial loss and a volte-face? What is the most famous example where player was losing heavily (down on material) in the beginning with lots of sacrifices but came back strongly to beat or "pwn" their opponent?

I am not asking for weaker player beating strongly rated players. Rather someone who was creatively toying with opponent by sacrificing each and everything or playing like a looney only to reveal a method to madness. Sort of like Laurence Fishburne saying "Your son creates like Fischer." in Searching for Bobby Fischer. 

Thanks!
This question might be a little too much in the discussion, no definitive answer category but I will answer anyway. 

My answer would be the game known as the immortal game between Adolf Anderssen and Lionel Kieseritzky on 21 June 1851. Anderssen gave up both rooks and a bishop, then his queen, checkmating his opponent with his three remaining minor pieces.

Wikipedia's entry on the game is here 

As a side note the list of games here has many games that would fall into this category, I haven't looked at them all but there are many interesting games on this list.