Video: "San Francisco - Be Sure to Wear Some Flowers in Your Hair" - written by John Phillips sung by Gregory Vanderlaan

https://youtu.be/N-nWX14691E 
Originally sung by Scott McKenzie. A 1967 anthem... It was an invitation to the "Summer of Love" held in San Francisco, California. The Haight-Ashbury district was a "Mecca" for baby boomers... an alternative lifestyle that worked for one brief moment and then exploded across country... and across the world... The Counter Culture concept is Currently alive an well in Arcata, California, Christiania, Denmark and Nimbin, Australia. 

About this same time there was a Broadway Show called "Hair" an American tribal love rock Musical... 

A Utopia That Works... Freetown Christiania is Copenhagen’s alternative neighbourhood... in Denmark... and NIMBIN, Australia - Arcata, California

https://www.visitcopenhagen.com/copenhagen/culture/alternative-christiania

Christiania is a mix of homemade houses, workshops, art galleries, music venues, cheap and organic eateries, and beautiful nature. It is still a society within a society. The area is open to the public – even with guided tours, run by the local Christianites.

For your own safety, visitors are advised not to film nor photograph in Christiania, especially not in the area in and around Pusher Street, mainly due to the hash dealing, which is illegal in Denmark.

Christiania Rent a Bike is a bike rental and bike shop in freetown Christiania in Copenhagen. They are also the only place in Scandinavia where you can find the handbuilt Pedersen Bicycle and the place where the famous Original Christiania Cargo Bike was invented.

https://www.milesofhappiness.com/blog/a-trip-in-nimbin#.W3PQ7ehKiM8
There is another Utopia in Australia Called NIMBIN... In New South Wales... 

http://gvan42.blogspot.com/2017/06/did-you-ever-notice-arcata-california.html
Did you ever Notice Arcata, California? It's Simply Wonderful. Near the Oregon Border on the Coast...