National Geographic Magazine 1920. For a very interesting (& convincing) article on giants on earth see article by Garry Nelson "Human Giants", Education & Science, Hubpages. http://garry-nelson.hubpages.com/hub/Human-Giants
Göbekli Tepe, the oldest temple on earth. Stonehenge was built about 4000 years ago. Egypt's Pyramids started around 4700 years ago. Gobekli Tepe is 12,000 years old. Located in eastern Turkey, not far from the Euphrates.