Hello Kelly,
I see folks have shared a number of public spaces (lobbies, gardens, etc) available free to all. Here is an interesting variant: the San Angelo Museum of Fine Arts (Texas) maintains the Coop Gallery, an exhibition space available for rent by any artist, for a nominal fee, and free to Angelo State students, "nonprofit and nonpartisan groups", and K-12 classroom teachers.
https://www.samfa.org/coop-galleryI would be very interested in learning about other museum program spaces that can be reserved and used for free by individuals and groups.
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Elizabeth Merritt
VP Strategic Foresight & Founding Director, CFM
American Alliance of Museums
Arlington VA
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