A number of the major landmark buildings in Hamburg had lovely green roofs, which were actually clad in copper which turns green when it oxidizes. You'll see several such building below. I thought it made a quite lovely effect.
Hamburg is a quite cosmopolitan town, so to speak. In addition to the many landmarks seen below, it also has a museum deveoted to erotic art, and a very famous "red light district", St. Pauli. This is so well known that tour buses even drive along it at night, including ours. The girls working the street aren't too keen on this though because they naturally aren't too keen on being photographed, especially since (as our guide explained) many of them only do this for a few years to earn money before going on to other jobs, and they don't want evidence of their former life haunting them down the road. But, in any case, the next time you think about getting a "St. Pauli Girl" beer, you'll know what the name means! Regrettably we didn't have much time to get out and shop, as it were.
One quite nice event we attended here but which I don't have any photos of was an evening concert in the central park, called "Planten und Blomen" which is Platt Deutsch (low German) for "Plants and Flowers" (in Hoch Deutsch, or High German -- the formal language you learn in school -- this would be written "Pflanzen und Blumen") There are huge colorfully lit fountains in the center of the park which are made to sway and move in tune with classical music played through loudspeakers. A very nice way to spend an evening, and all free to the public.