This is a wonderful sight/site. The audio tour is very long but filled with information about the people and events surrounding the carving. Our brains couldn't handle all info. and so we skipped the last four chapters. Our 14 year old daughter was a little disappointed in the size - she thought it was going to be larger. The movie isn't necessary if doing the audio tour but a must see if not. For only $11 per car, you can not go wrong with this.