I'm sure for the right price you can do whatever you want. But considering it's not a free gallery it's probably gonna cost you
Best to ask the gallery. There may be some liabilities and bonds. They have their process and fees.
Not sure.. you may to ask at the helpdesk there
Ask at the Help Desk. They are some of the most friendly people I met in Seattle. Be assured that you will have to pay for security and purchase insurance (bond). Probably you will have to shoot it late at night during closed hours, because it is one of the most popular attractions in Seattle.
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