Visitn the Helmut Newton Foundation and Museum if you are interested in photography and/or the specific work of Helmut Newton. It is fairly new (Newton referred to it as his masoleum), has over 1000 prints he donated in addition to magazine covers and posters as well as correspondence including letters and notes to his wife after his death.  The museum gives one a feel for Newton the man, his irrevence, his persuasive influence and his prodigious talent.  The museum is easy to find and a brief walk from the Metro.