Did Adolf Hitler really die in his bunker, or are there other ideas on his death?

Hitler did died in the bunker in Berlin, but there were stories/rumours that he escaped to South America where a lot of German people lived. The stories/rumours said he had plastic surgery to change his looks, others that he just stayed in hiding till the day he died. I tend to think he did not escape as no matter where he was hiding, someone would have betrayed him if enough money had been offered.