A Saudi Arabia Rock Art information site that I have just been given:
This is an amazingly detailed and informative web-site for anyone interested in rock art and a must see.
Their introduction page says it all.
This Web site is designed to give scientists and the public an opportunity to explore rock art in the remote landscape of Saudi Arabia. Take a tour and learn about the ancient people who carved the petroglyphs and the animals they hunted and herded. We have chosen some exciting imaging techniques to best depict this dramatic art. Some of our Web pages are interactive, allowing you to zoom in on specific figures or navigate around an image (GigaPans), or change the lighting on an image to see more (PTMs).
If you look then I hope you have an hour or two spare…. 🙂