Prompt
"Generate an image of a London Underground map with a dark blue line representing the Piccadilly line, stretching from Cockfosters in the north to Uxbridge, Heathrow Terminal 5, Heathrow Terminal 4, and Heathrow Terminal 2 & 3 in the west, passing through iconic stations like King's Cross St Pancras, Leicester Square, Piccadilly Circus, and Covent Garden, with a subtle background texture of the London cityscape."
