Can you imagine the gray, stolid Department of the Interior as a progressive, arts-supporting scene? Consider, then, in 1938, the secretary of the interior’s foresight in opening the Indian Craft Shop, a showcase within government walls for the express purpose of promoting American Indian handicrafts. Adorning those walls are rich, powerful murals painted by Navajo and Apache artists, and inside you can find authentic craftwork including jewelry, pottery, and basketry. Spanning four generations of artists and representing more than forty tribal groups, the “touchable museum” offers everyone a chance to take home a piece of history. To mark its 60th anniversary, the shop celebrates its continuing mission to preserve the spirit of Native American culture with “It’s All Relative,” a show featuring demonstrations by guests, including Barbara Gonzales, the great-granddaughter of internationally renowned potter Maria Martinez, one of the first artists contracted by the DOI. Demonstrations from 11 a.m.-2 p.m. today through Sept. 18; show to Sept. 25 at the U.S. Department of the Interior, 18th & C Sts. NW. Free. (202) 208-4056. (LE)