The Fondation Louis Vuitton collects work that date from the 1950s onward. In this Pushkin Museum exhibition, 60 pieces from over 20 international artists—including Giacometti, Warhol, Basquiat, Abramović, Flavin, Richter—are on view. Themes include “subjective expressionism,” Popist art, “music/sound” (presented as installations), and “contemplative.” —L.J.