In 1969, on this sloping dairy farm field owned by Max Yasgur just outside of Bethel,NY, 450,000 people joined for three days of Peace & Music. Concertgoers enjoyed music from 32 of the best recording artists of the time including Santana, Janis Joplin, Sly & the Family Stone, Jefferson Airplane, Crosby, Stills, Nash, & Young, The Grateful Dead, The Band, and Jimi Hendrix.
I arrived 40 years late. I'm sorry I didn't get to see the festival itself but I enjoyed the echoes.
(the original view is slow to load, but gives you a feel for the place)