The Detroit Institute of Arts, located in downtown Detroit, is a really nice art museum. I remember many field trips to the DIA while in elementary school and it was always a magical place for me. They have an extensive collection of art the spans a large period of time form modern art back to Egyptian art. The galleries are good sized and have places where you can sit and take a break. The Diego Riviera mural is amazing and really a neat thing to experience. If you haven't been to the DIA in a while, it's probably time to pay it another visit.
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