Article Photos: 5 free things to do in the Denver area 4/8

This photo taken on Dec. 7, 2012 shows Justin Niederhauser, 19, from Boise, Idaho, as he plays the piano on the 16th Street Mall in downtown Denver. A ride through downtown's 16th Street Mall on the free bus shuttle is a ride through Denver's past and current scene. (AP Photo/Ed Andrieski)