Greensburg Day Photo 1 Caption Beatrice Bauer, museum exhibits technician, sets up the artifacts display for Greensburg Day. The large yellow object to the left is the tornado siren that sounded the alarm for 20 minutes before the storm hit and destroyed the siren. Greensburg Day will be held at Sternberg Museum of Natural History in Hays, Kansas on November 17, 2007. Photo by: Brian Bartels, Sternberg Museum