Yesterday our family went to the Placer County Museum. It had real gold, old fashioned telephones, telegraphs, a video about route 40 becoming interstate 80, old shoes of young school boys, old pedicure sets, hand painted dinner plates, etc.
One of my favorite exhibits was the old fashion communication: holding a telegraph and an old fashioned telephone. They worked and had translations. Also, you were allowed to use it. We had lots of fun sending messages on it.
I recommend that museum.