There is a very well-known museums in my hometown that accepts crypto as payment.
Don't think it's worth acknowledging the non-online stores doing this though..Almost all business (to buy products and experiences) in the near future will be online or virtual. VR museums, concerts, etc.
I think we're eventually heading towards a global and virtual decentralized marketplace. You'll be able to check out what you're buying in VR and have extremely fast drone delivery. If you want to buy an experience, you'll be able to do that in VR. It's adoption is heavily being pushed and the combination of technologies makes this almost inevitable from my perspective.