st paul cathedral, 30 st mary axe, tower 42, the black friars bridge over river thames in london, england

architecture attraction axe black boats bridge british building buildings cathedral city commercial cruisers destination district england europe financial friars generic gherkin landmark landmarks london mary modern motorboats national nature outdoor outdoors over panoramic paul place places powerboats river riverbank riverside scarpers scene scenic scenics scrapers site sky skyscraper swiss thames the tourism tourist tower travel vessels view water westminster