Sachin D.
Google
If you are even faintly interested in night skies, this is an absolutely must visit place. If you schedule allows for, please take the dark night tours offered by KPNO. This will a visit worth remembering for a long time. Few reasons ...
1. Geography of Kitt Peak is unique making the night sky viewing unparalleled.
2. Sheer collection of telescopes, the science of them, their operations & discoveries they are leading is inspiring.
3. The volunteers do an amazing job at explaining a lot of things.