George Noory and author Nick Redfern discuss his theory that sound waves and levitation could have been used to build ancient structures like the Pyramids in Egypt and Stonehenge, and if the technology was made by humans or aliens.

<p>George Noory and author Nick Redfern discuss his theory that sound waves and levitation could have been used to build ancient structures like the Pyramids in Egypt and Stonehenge, and if the technology was made by humans or aliens.</p>

The Best of Coast to Coast AM podcast, hosted by George Noory. A media phenomenon, Coast to Coast AM deals with UFOs, strange occurrences, life after death, and other unexplained (and often inexplicable) phenomena.