Goli otok
One of the most popular tourist tours is to the Croatian Alcatraz, island Goli Otok, one of the most notorious communist prisons in Europe, opened right after the WW2 and closed in 1988. Do not be confused by its name, Goli otok (Barren island) was forested by the inmates themselves, who suffered terrible living conditions and often died. Supposedly more than 16.000 people passed through this hell. No one ever escaped.