The Portuguese "bank of materials" acts as a tile museum and a repository of free azulejos for building owners. If you visit Portugal, you might notice all the blue tiles. They're called azulejos and they're a major part of the country's heritage. They're used on walls, floors, and ceilings and depict the history and culture …
The New York Met Museum digitised their collection under the Creative Commons Zero (CC0) licence.
Nottingham Contemporary is an international art centre. Opened in 2009, it holds a strong local purpose. This is my review.
The Heard Museum in Arizona held an exhibit looking at superheroes in Native American culture.