The Beatles wrote quite a few songs about marijuana, though some of them are vague enough to fly under the radar.

The Hitchcock Estate’s 2,000 acres are known less for its tony accommodations — a bowling alley, two main houses, a tennis pavilion — than for its far-out history as an incubator of the counterculture ...

Owsley Stanley created a legendary strain of acid in the 1960s — now it’s taking on a new life in modern-day research ...