messenjaH,
You are not listening. Stories about giants are not evidence. Neither are pictures unless they have been validated by other non-biased sources.
People have believed (and some still do) in faeries, leprechans, brownies, valkyries, etc., for hundreds of years and yet no one has found evidence of their existence. There have even been pictures taken of some of these things, but they have all turned out to be bogus.
Before you continue believing in this stuff, wait until you hear what museum these supposed bones are housed in. Then find out as much as you can about that museum and who has looked at the bones - hopefully it's a physical/forensic anthropologist, or someone with such skills, who has nothing at all to do with the museum.
I'm betting you will find it difficult to get any straight answers.