For the rest of the week, I'll be posting memorable images from the '60s, '70s, '80s and '90s. Let's start with the '60s, the decade that basically launched counterculture. Of course, I could fill 20 blog posts with images that capture the decade, but these 6 sort of sum it up for me. Can you feel the spirit of the times? Can you hear the music? Can you appreciate how far we've come, both for better and worse?