Independence Memorial Hall is a national monument in Sri Lanka built for commemoration of the independence of Sri Lanka from the British rule with the restoration of full governing responsibility to a Ceylonese-elected legislature on 4 February 1948. It is located in Independence Square in the Cinnamon Gardens, Colombo. It also houses the Independence Memorial Museum.
The monument was built at the location where the formal ceremony marking the start of self-rule, with the opening of the first parliament by Prince Henry, Duke of Gloucester occurred at a special podium on 4 February 1948.
Wikipedia https://en.wikipedia.org/wiki/Independence_Memorial_Hall
Truly Sri Lanka website http://www.trulysrilanka.com/monuments-and-memorials/independence-square-sri-lanka.html
Address Independence Square, Colombo 00700, Sri Lanka
Coordinates 6°54'16.692" N 79°52'3.239" E