After the war, Wembley was selected as the site for the 1924 British Empire Exhibition and the park land was purchased from the Metropolitan Railway company. Among the pavilions and halls designed for the exhibition by John William Simpson, Maxwell Ayrton and Owen Williams was a grand sports arena, the 125,000-capacity British Empire Exhibition Stadium, later to be known as Wembley Stadium. It was built on the site of Watkin's Tower, covering its foundations, and opened in 1923. It later became the home ground of the England national football team. When the original stadium was rebuilt in 2000–2003, the lowering of the level of the pitch resulted in the concrete foundations of the tower being rediscovered on the stadium site underneath the Twin Towers.