Mary McFadden, now 70 and a longtime force in American fashion, has collected fantastic art from all around the world, from every moment in history. She's got a stunning crown from China, encrusted with gold dragons and at least a thousand years old. She's got a golden funerary mask made in Peru about A.D. 400, and a necklace made of huge fish teeth from 18th-century Cuba. Those and dozens of other compelling artifacts fill the display cases in "Mary McFadden: Goddesses" at the National Museum of Women in the Arts.