Sample information from 2017 that should help orient you to how the day works.
(Scroll down to get all four links)
Click for General schedule -- will be updated for 2020
Click for parking directions and map of campus/parking; buildings used by NHDNH
Click for catalog of entry times, by category
All exhibits are in HUB (see combined map file, above); other projects are in Hyde (next to Hyde parking lot). Click here for rooms in Hyde used for your category