Visitors to the National Cowboy & Western Heritage Museum, 1700 N.E. 63rd, have until Sunday to glimpse National Geographic: Greatest Photographs of the American West. The exhibition showcases powerful images from the scientific institution’s 125-year collection, including canyons, critters and country folk. Admission is $5.75-$12.50. Call 478-2250 or visit nationalcowboymuseum.org.