Previously undiscovered ancient cities stretching hundreds of acres have been found in the depths of the Llanos de Mojos savannah-forest in Bolivia thanks to new technology.
International researchers from the UK and Germany have found the settlements, believed to have been built between 500 and 1400 AD, that have been hidden by nature for centuries, the Daily Mail reports.
Dense vegetation had concealed the ancient ruins from previous surveys, but this group of researchers used airborne laser technology for the first time in the Amazon.
