ww2 tunnels, leros, dodecanese, greece, europe

aegean ancient archaeology architecture background barracks blue buildings cave color conflict destination dodecanese door empty environment europe european exterior famous fascist field forces forgotten fortress geology german grass graze greece greek heritage historic historical history hole horizon horses housing island italian landmark landscape leros mediterranean military mountains national natural nature nazi old outdoors outposts park protection relic rock rugged ruin ruins scenic sea shelter sky station stone stronghold terrain tourism travel trees trenches tunnel vegetation war warfare wartime water weathered