From Wikipedia: Landskrona Citadel (Swedish: Citadellet or Landskrona slott) is situated in Landskrona, Scania, southern Sweden. Initially built 1549–1559 as a purely defensive fortification with two complete moats, the inner with a width of 70 metres (230 ft). The outer (complete) moat is between 40 and 70 metres (130 and 230 ft) wide, and has cross fire bastions for artillery and guns. Outside the outer moat, a third narrower moat covers the northwest and northeast. There also exist remains of a fourth moat (between the two outer moats). The fortifications and moats system surrounding the castle is known to be one of Europe's largest and best preserved.
Three bracketed photos taken 2 stops apart, a quick run through DXO 8 for the special pixie dust magic that the elves at DXO lavish upon RAW photos to make them look better, and then "Exposure Merged" in Corel Paintshop Pro X5. Tweaked the levels, contrast and did some sharpening, also in PSP X5. For this type of photography a sturdy tripod is essential because of the very long exposure times. I used my D90 and the 18-105mm kit lens, Aperture Priority and f11.0, always RAW. :-)