monument to the unknown hero of avala, also called spomenik neznanog junaka. built in 1934 - 1938, it's a major

avala monument spomenik unknown hero neznanom junaku architecture attraction hill mountain balkan balkans belgrade beograd world war historic historical building history landmark landscape memorial mount neznani junak outdoors serbia soldier srbija statue tourism travel wwi yugoslavia neznanog junaka tribute heroism commemoration national sculpture heritage serbian visit