I am certain that giants,ranging from 10- 100+ ft tall have walked this earth,yet I am not insane.Actually.

@SW-User As well as humanoid types,yes.But in the main,humanoids.

@pedrohedgerow Hmm. That rules out a rational possibility.

@SW-User I am 62,which does not make me right.But it does absolutely guarentee I have spent far longer researching the matter than you,and I have an open mind.Just sayin ;)

@pedrohedgerow You do realize that a 100 foot man would have an 8 foot penis when erect. That's a giant in itself.

@SW-User I had not thought of it as such,but then there are many massive wonders in this world,tis true