Grayson Cox, of Austin, Texas, works on the controls of an excavator while learning to use construction equipment at Dig This, a life sized sand box for adults, Monday, Aug. 29, 2011 in Las Vegas. For... more 
Grayson Cox, of Austin, Texas, works on the controls of an excavator while learning to use construction equipment at Dig This, a life sized sand box for adults, Monday, Aug. 29, 2011 in Las Vegas. For a few hundred dollars, tourists spend a few hours at Dig This pushing around dirt, 1-ton tires and rocks that don’t move when you kick them. All it takes is a 10-minute classroom lesson and guidance from trainers through headsets. (AP Photo/Julie Jacobson) less 
1 / 1
Associated Press | Photo By Julie Jacobson
Fri, Sep 2, 2011 4:50 AM EDT