Griffith Park is one of my favorite places in Los Angeles; it's a sprawling, rugged and hilly park that includes the beautiful art deco observatory, the Greek Theater, and the Los Angeles Zoo. And the Hollywood sign! It also has the merry-go-round that was a favorite place for Walt Disney to bring his daughters; he recounted that as he sat there eating peanuts, he envisioned a place where kids and adults could have fun together. Which makes it sound like Griffith Park is a big snooze. But I love it!
Besides the merry-go-round, another feature is the Los Angeles Live Steamer's Railroad, founded in 1956 by railroad enthusiasts "...for the purpose of educating people in railroad history and lore and to further the avocation of live steam, gas-mechanical and electronic scale model railroad technology."
Here are three photos, that probably date from 1956 or '57, showing the miniature railroad. Walt Disney shared a love of miniature trains, although this example is a more modern diesel-style locomotive.
As you can see, the park really is a kind of oasis in the middle of L.A. You can still ride miniature trains in Griffith Park, but when I looked at the website, it appears that this specific locomotive has been retired. There are now three different trains: a steam train, a diesel train, and an electric train.
The Live Steamers Railroad also obtained the barn that housed the control center for Walt Disney's miniature train layout at his home in Holmby Hills (it was saved by Diane Disney Miller, and reopened in Griffith Park in July of 1999). The barn is open to the public on the third sunday of every month, with guided tours from 11 am to 3 pm. Be there or be a dodecahedron.