Griffith Park and Observatory is a beautiful park with a family friendly science museum. The Hollywood sign is also on the same ridge. A lot of movies have used the observatory -- Terminator 2 and The Rocketeer for example. Great views of the city, interesting architecture and Free!
L&C used it too -- check out the "EPRAD" scenes in "All Shook Up." When Lois is rushing to the bank of telephones and shoves Clark into the other reporter; that's on the right-hand side of the observatory. I enjoyed my visit there.
