From above all is visible! Pictures from the satellite found the hidden megaconstructions to Serbia

More than 3000 years ago, in a bronze age, people across all Eurasia created the extensive distribution networks connecting continents with each other. But the Srednedunaysky plain, low-lying space on which today parts are Romania, Hungary and Serbia, and also Slovakia, Croatia and Austria, was considered as the isolated internal area. This representation did not change and after archeologists found some fenced sites protected by multikilometer walls and ditches 20 years ago, reports Science.org. Nobody knew for certain, whether these sites are connected with cultural development in others...