Carolwood Pacific Railroad
The Carolwood Pacific Railroad (CPRR) was a 7+1⁄4-inch (184 mm) gauge ridable miniature railroad run by Walt Disney in the backyard of his home in the Holmby Hills neighborhood of Los Angeles, California. It featured the Lilly Belle, a 1:8-scale live steam locomotive named after Disney's wife, Lillian Disney, and built by the Walt Disney Studios' machine shop.
Source: Wikipedia — Carolwood Pacific Railroad (CC BY-SA 4.0)