This picture was shared with text: The Smithsonian is hiding the fact that thousands of giant skeletons have been found all over the world.
That is an old Worth1000 photoshop contest entry by ‘Norrit’. Unfortunately Worth1000 website has been closed, but many photoshop works can be still found from DesignCrowd’s website.
This photoshop work is part of the Size Matters 2 contest from 2004. You can find this image and other submissions from here.