If you're looking for an archive to browse on a lazy summer afternoon, you might like Mango Falls—evidently the selects from a much larger collection of old and abandoned Kodachrome slides put together by a cheerful guy named Joe and his daughter Willow. All I can say is that Joe and Willow have good taste.
I suspect Mango Falls might have the most resonance for viewers of a certain age—say, middle age, now defined by the DSM as 45–65. And there's some indication on the site that they've had trouble with their server capacity from time to time when they get linked to, so if you can't access the site, try again another time.
As you might imagine, I enjoyed Joe and Willow's tour of the '50s, '60s, and '70s. Put on some of your favorite period music and go for a stroll.
Mike (Thanks to Fred Mueller and his daughter)
Featured Comment by John Frendreiss: "Thank you! Looking at images like these taps into some primal craving in my brain. My synapses are awash with nostalgic endorphins. I could look at them for days."