Award-winning archaeologists and and bestselling authors W. Michael Gear and kathleen o'neal gear begin the stunning saga of the north American equivalent of ancient Rome in the city of cahokia, at its height, covered mo...Award-winning archaeologists and and bestselling authors W. Michael Gear and kathleen o'neal gear begin the stunning saga of the north American equivalent of ancient Rome in the city of cahokia, at its height, covered more than six square miles around what is now st.