The city of Cahokia is the latest ancient site to go virtual, thanks to a reconstruction and online map published.
Ancient Cahokia was a Mississippian city that flourished between 1000 -1400 AD. At its peak, in the early 13th century, it had a population between 10,000 and 20,000 and covered nearly six square miles. This makes it larger than London ca. 1250 AD.
It had about 120 mounds during this time, some used for burial, others for religious purposes. It also had palisades, communal plazas, houses and fields full of crops.