From the restored depot and ticket office to the historic displays inside the mail car and other carriages, this is an attraction with something for the everyone. For railroad buffs its main appeal probably lies in the Union Pacific Challenger 3977, one of the largest steam locomotives ever built, but the fact that you're positively encouraged to climb aboard this and the other exhibits makes it a memorable experience and great fun even if you don't know one loco from the next.
If you go:
Admission is free and the museum is open daily from May to September.
Links:

Cody Park
1400 North Jeffers
North Platte, Nebraska 69101 USA
info@visitnorthplatte.com
Mailing address:
Lincoln County Convention and Visitor's Bureau
1221 S. Dewey Street, Suite A.
North Platte, NB 69101 USA
Phone Numbers:
Lincoln County Convention and Visitor's Bureau
+1 (800) 955-4528
+1 (800) 955-4528