Bring your ID with your L.A. address or bring a bi...

Bring your ID with your L.A. address or bring a bill with your name and address on it (plus I.D.). We were surprised to find out that the museum is free after 3pm on weekdays. I would call to double check hours etc before showing up. The museum is huge. We haven't even scratched the surface on discovery yet. I enjoyed it and will return.