I don't know the answer to your question, but I made reservations on Tuesday to visit on Wednesday, and all the time slots were still available. There will be more crowds in summer because school is out in the US for summer vacation, and that's when many families with children travel. I read that, to avoid the biggest crowds, visit on a weekday rather than a weekend, and go either early in the morning (it opens at 8:00 or 9:00 AM) or late at night (after 10:45 PM). We went at 9:00 AM, and there was no line. I recommend checking the website every day, and as soon as July reservations are available, make your reservation.

I'm not sure we booked with a city pass

I believe that's with a regular pass.

Tickets are scanned as you enter the building. No one will check the name of the credit card holder.

I do not believe you can alter the flow. Take time to see the museum because you can’t go back after you leave 2.

Hi, I'm sorry I don't know the answer to your question. I would try and phone them (I tried to email them about buying a poster they had ran out of but they blocked my email) When I made enquiries in the shop at ESB, the staff there were most helpful.

I'm not sure but I agree with comments by Lawrence of Lenexa, Kansas. Suggest you call them to confirm. Thanks

I would imagine they mean film cameras not your average slr?

Check their website for opening times We arrived approx. 20 mins before our scheduled arrival time which was fine

Yes, once you pass the initial security section, you will be able to move around between floors, exhibits and gift shop. Have fun