The Rock Garden of Chandigarh is a sculpture garden in Chandigarh, India. It is also known as Nek Chand Saini's Rock Garden of Nathupur after its founder Nek Chand Saini, a government official who started building the garden secretly in his spare time in 1957. It has spread over an area of 40 acres (16 ha), and is completely built from industrial, home waste, and discarded items.