New Orleans has no lack of museums, and as always, they celebrate the city’s renowned diversity. For starters, there’s your traditional art museum, celebrating its 100th anniversary this year. That is New Orleans’ flagship art museum, the New Orleans Museum of Art in City Park. It’s under new leadership in the person of Susan Taylor, and is proudly moving into its second century. NOMA’s holdings include a significant collection of decorative arts and photography as well as painting, but for its second hundred years, it’s widening the spectrum of pieces in the permanent collection in its new show, NOMA 100.