the peter and paul fortress, st.petersburg view on the peter and paul church. summer day, view from the neva river

petersburg cityscape architecture russia view cathedral museum landscape landmark peter travel paul church russian fortress neva tourism river saintpetersburg europe sky island spire culture tower wall fort st religious historic facade petropavlovskaja leningrad summer water citadel attractions traditional saint fortification old lantern style defense admire belltower sunset city bastion clouds