The Tait Tower was built on a hill in the park as part of the 1938 Empire Exhibition, but was demolished on the outbreak of World War II. A monument in the form of a large inscribed granite stone commemorating the 1938 Empire Exhibition currently overlooks Bellahouston Sports Centre and was unveiled by King George VI on 9 July 1937. Long distance races, such as the Glasgow Marathon and Half Marathon, pass through the park, although events to the south were restricted in the 1990s when subsidence into old mine workings resulted in some depressions in the park surface.