1902 19th century Crowley Wharf Crowleys Wharf Doric England Greenwich Greenwich Power Station River Royal Naval College Thames Thames River The O2 Trafalgar Pub Trafalgar Tavern United Kingdom arena beachcombing blue sky cast iron column cast iron columns coal jetty coaling pier foreshore from below from water level industrial industry jetty london looking northeast low tide mudlarking nineteenth century panorama pier sunny sunny day wharf white clouds winter