There is a parking garage right under the museum. Their website says: "Enter on 2nd St. between Hope St. and Grand Ave. Rates are $15 for 3 hours with museum validation, and $5 for each additional 15 minutes, with a $25 daily maximum. There is a $15 flat rate after 5 p.m. on weeknights and all day on weekends" Personally, We went as soon as they opened on a Sunday, and wew avle to find free parking spots a few streets south of the museum.
Yes, very convenient paid parking.
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