The clearing of forests in southwestern Brazil has revealed a series of monumental geometric earthworks, including more than 450 circles, squares, octagons, and ellipses often linked with ceremonial roads framed by very straight, parallel walls of earth.

Built between 3,000 and 1,000 years ago, these earthworks are remarkably similar to the earthworks of Ohio’s Hopewell culture. Could they be connected in some way?

http://www.dispatch.com/news/20170924/archaeology-brazilian-earthworks-eerily-similar-to-ohios-hopewell-mounds