Is an image appearing to show a giant skeleton being discovered real? No, that's not true: This is a doctored image, and digitally altered photos featuring a giant skeleton have been debunked since 2007.
The claim appeared in a Facebook post (archived here) on July 11, 2012, with the image of what seems to be a giant human skeleton being uncovered in a dirt excavation site by a team of archeologists with shovels. The caption is:
God is so good to us!
-- in Greece.
This is what the Facebook post looked like on October 13, 2021:
(Source: Facebook screenshot taken on Wed October 13 19:30:45 2021 UTC)
A photo of a human skull was placed into a pre-existing photo of an archeological find of the Jobaria dinosaur, reported by BBC News in this 2008 article.
A reverse Google image search reveals that this exact image was discredited in a 2020 article published by Latestly, an Indian media company. The article mentions:
But these same set of pictures have been going viral since 2004!
A 2007 National Geographic article found images similar to the one above, which include the origin of the skull photo. That article says:
Since 2004 this doctored image has helped give legs to tall tales of ancient giant humans.