The permanent collection at Paris' modern-art museum showcases works from nearly every major art movement of the 20th and 21st centuries, such as Modigliani, Matisse, Braque, and Soutine. The highlight, however, is the room filled with canvases by Dufy and Bonnard. Additionally, visitors can keep their eyes peeled for the contemporary temporary exhibitions (not free). Be sure to download the free multilingual app online for maximum benefit.