The tower of St. Nikolai Memorial. The original main church was destroyed in the air raids on Hamburg in 1943. air raids, architecture, attraction, beautiful, building, cathedral, church, city, cityscape, destroyed, destruction, europe, european, exterior, famous, german, germany, gothic, hamburg, heritage, historic, historical, history, landmark, medieval, memorial, memory, monument, museum, nikolai, old, religion, ruins, saint, sky, tourism, tourist, tower, town, travel, urban, view, war