travel: our quest to visit all 50 states: arizona: The Giovale Open Deck Observatory at Lowell Observatory in Flagstaff, Arizona

The Giovale Open Deck Observatory at Lowell Observatory in Flagstaff, Arizona.  A unique feature of the observatory is that in order to expose the instruments to the night sky, the building itself retracts to the rear, opening the deck to the sky.
The Giovale Open Deck Observatory at Lowell Observatory in Flagstaff, Arizona

The Giovale Open Deck Observatory at Lowell Observatory in Flagstaff, Arizona. A unique feature of the observatory is that in order to expose the instruments to the night sky, the building itself retracts to the rear, opening the deck to the sky.