If you visit these American cities, you might just think you've traveled back in time to the "flower power" heyday of the 1960s. The original baby boomer hippies have inspired a whole new generation to take up the causes of free love, environmentalism, and holistic spiritualism.
20. Madison, Wisconsin
The longest-running marijuana festival in the U.S., the Great Midwest Marijuana Harvest Festival, can be found parading the streets of Madison every October. Stop by the local co-op to stock up on snacks before you listen to speakers educate about and advocate for marijuana legalization. If toking up isn't your thing, you can still get the full hippy experience! Why not visit some of the city's art venues or coffee shops?