Aliens & Art?

I'm watching this program on the history channel called "Ancient Aliens: The Series". In a nut shell, aliens have come down to earth thousands of years ago and the theory is that they shaped our ancient civilizations. So they're showing all these images of ancient sculptures, architecture and huge designs that can only be made out if you were high up above. They're talking about this book  "Chariots of the Gods", by Erich Von Daniken, and how it influenced a lot of people. Has anyone read it? If so, let me know what you thought of it. It sounds like something that would be helpful or at least be an interesting read.