As part of its new master plan, Shedd Aquarium is revising its group
entry area.  We're looking for places similar to ours that have a good
handle on welcoming, processing and orienting groups.  Who would you
suggest we contact?  It should be an institution that...

Hosts 250,000 or more school children a year
Has a total annual attendance, (general visitors + groups) of more than
1 million people
Stores group lunches and coats and orients groups
Has classrooms/laboratories etc in addition to exhibit space.

We don't ask much, do we?

What are we struggling with?  The usual:  traffic flow, sequence of
activities, size of support areas...and so on.  Thanks, everyone.