Can't pass up this opportunity
The wait for the tour was about 30 minutes in a long line - but it moves pretty quickly. You move through at your own pace, reading the details as you go along. It can be difficult to get around inside if you aren't 100% mobile - steep stairs, narrow spaces, etc...
An amazing site to see - and a great opportunity to share your visit - at the end you can create a video to send to your friends via email. A nice FREE touch!
Enjoy!