Not so long ago, the Beatles put Rishikesh "on the map". The year was 1968, and Maharishi Mahesh Yogi and his TM movement- transcendental meditation - was all the rage. Meditation of all kinds was the "in thing" to be doing. The Beatles famously spent a couple of weeks with him at his place. Abandoned in 1997, it is now back under the control of the state forestry department, but the shells of many buildings, meditation cells and lecture halls still stand, including Maharishi's own house and the guesthouse where the Beatles stayed. This historical ashram is now monitored by security guards and officially no one is allowed to enter the premises.
The Maharishi died at age 90 in the Netherlands. The Beatles Cathedral Gallery was a community art project dedicated to the artistic re-activation of the Satsang Hall in the abandoned ashram. The project launched in April of 2012, only to be shut down two weeks later. See Gallery