Always seem to be very busy but midweek did not ha...

Always seem to be very busy but midweek did not have to queue for tickets. There are 2 admission prices, they default to the more expensive that includes a donation so check for the fine print that provides cheaper without donation. I only noticed when my (local) friend pointed in out. A lot of effort has been put into explaining the displays, different to what I recall from 20 years ago!