The earliest proper map (as opposed to panorama) of London known.  Attributed to Ralph Agas, and probably surveyed between 1570 and 1605. The original was 6 foot 0.5 inches long by 2 feet 4.5 inches wide.  This much reduced image is a scan of a copy of a lithograph of a copy, was itself badly repaired with sellotape and has had to be "restored"; so is hardly a truly faithful representation of the original, but few good copies exist and no other detailed public domain images are known.
Mike Calder, image of  Civitas Londinium, Agas' Map of London, c. 1570-1605
Maps of Old London, London, Adam and Charles Black, 1908.  Scanned &amp; corrected Mike Calder.