Quantum Awakening for DUMMIES
Interesting E-books about our past by Jonathan Gray.
http://www.beforeus.com/shopcart_ebooks.html
In our past we had many nuclear wars, this resulting in meany area's
turned in to deserts or nuclear wast lands in first view 100 years. Just measure the level of radiation and you wil know if you have found a vaporized ancient city.
This can be found all over the place on this planet.