It’s been 40 years since the Summer of Love and Scott McKenzie advised everyone heading to San Francisco to wear flowers in their hair. Summer of Love: Art of the Psychedelic Era, the Whitney Museum’s retrospective of the era’s psychedelic art (on view through Sep 16) revisits the unprecedented explosion of contemporary art and popular culture brought about by the civil unrest and pervasive social change of the late 60s and puts works by Andy Warhol, Robert Indiana, Richard Avedon, and Jimi Hendrix (his only known watercolor) in context with the politics, music, and nightlife of that buzzing culture.

Even if you didn’t live through it, light shows, protest footage, and a rare collection of album covers and underground magazines will have you yearning for love beads.