??? Does Colorado's Grand Canyon hide an ancient city found by a Smithsonian Institution photographer? ??? Did the Vikings beat Columbus to the New World using a fiber-optic navigational instrument? ??? Who built a colossal water reservoir in Iowa long before the first European settlers arrived? These are just some of the intriguing questions posed and answered by expert researchers in Unearthing Ancient America. They go on to tackle a broad variety of archaeological enigmas shunned as too heretical for consideration by conventional scholars???a Roman figurine found off the New Jersey coast, North African gold in Illinois from a long-vanished kingdom, an Egyptian knife removed from a centuries-old tree in California, a fifth century Christian church in Connecticut, a prehistoric harbor underwater in the Bahamas, Easter Island's cultural connections with pre-modern Japan, and voyagers to Maine from Stone Age Scotland.