We have a theater quite like it on the inside, but smaller, at the Cincinnati Museum Center, the Omnimax. Very steep seating, projecting on the inside of a dome. Quite a place - an Art Deco masterpiece. Used to be the train station. Holds 275 instead of Sphere's 18,000.
-------------------------------- "A mob is a place where people go to get away from their conscience" Atticus Finch