http://wikiless.i2p/wiki/Valjevo?lang=en
In Petnica , 5km away from Valjevo, the Petnica Science Center supports young researchers. [ 13 ] The Nenadović Tower (Кула Ненадовића), originally an armory built by Jakov Nenadović and his son Jevrem in spring 1813, [ 14 ] is adjacent to the road to Šabac , at the edge of Kličevac hill.