suomenlinna old fortress in helsinki

coast sea shore bay ocean horizon terrain cliff tower reflection water cape beach rock sky landmark cove vacation wave suomenlinna old fortress helsinki king#39aph39#s gate russian coastal mortars used russo-japanese war world water travel landscape building architecture old stone military island unesco coastline scandinavia coast battery fortification stones coastal mortar weapon war fortress archipelago gate cannon helsinki defense artillery ancient gun protection outdoor russian army defence fort suomenlinna sveaborg historic siege entrance defensive finland fort kustaanmiekka mortal siege suomi