Gold lion's gonna show you where the light is on the Balboa Park Railroad.
Balboa Park has a super fun railroad similar to the one that Navin Johnson operates in the Jerk.
Balboa Park is always entertaining. I saw a close-up magic art, did some light shopping and checked-out the International Houses that were open for Spain and Iran. Best of all, most of the charm and sightseeing at Balboa Park is free or cheap. Check it out.