Site is up to date. We did self tour and asked questions. Then went back to take pics.
The evening guided tour was about 45min followed by the digital 30-45min show right across the street if you bought the double ticket. Both were outstanding. Seemed more people joined us for the digital show.
We walked ourselves and asked questions of the guides who are all around the grounds... it took ~45 minutes or so. Seemed like plenty of time to enjoy and ask questions.
Its up to you! You can either walk with a tour guide or walk by yourself. So its really up to you to determine how long you wannt browse. Also, if its on the museum website i would say its the most up to date information
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