MAMAC occupies a striking building of four marble towers on Place Yves Klein, overlooking Place Garibaldi at the edge of the old town. The permanent collection covers European and American art from the 1950s to the present, with particular strength in Nouveau Réalisme and the Nice School: works by Yves Klein (including monochrome canvases in his famous blue), Niki de Saint Phalle, Jean Tinguely, and Arman fill the upper galleries.
Pop Art, Minimalism, and later movements are well represented alongside the French material. The roof terrace with panoramic views over Nice and the sea is free to access and worth the trip alone. Note that the museum has undergone renovation; check current opening status before visiting.