In pics: Vrelo Bosne public park on outskirts of Sarajevo

A man walks across a bridge in Vrelo Bosne public park on the outskirts of Sarajevo, Bosnia and Herzegovina, on Oct. 17, 2017. Vrelo Bosne, also called Spring of the Bosna river, featuring a spring of the River Bosna, is one of the country's popular natural landmarks. (Xinhua/Haris Memija)