St Mary's Roman Catholic Cathedral in Wyoming - in front of the cathedral are the 10 Commandments immortalized, the first time I've seen such a monument.
The Cheyenne Union Pacific Railroad Depot is the former Union Pacific Railroad station building in Cheyenne, Wyoming. The building is now used as a railway museum.
Holliday Park is home to Lake Minnehaha, an art center, basketball courts, public restrooms, play areas, and picnic shelters. There is a multi-use path around the lake. There are also multiple historic trains in the park with informational signage.