Radio City, like New York, is a place of superlatives, built on grand scale. Since 1932, over 300,000,000 people have attended its innumerable events, concerts and shows, the most famous of which surely must be the annual Radio City Christmas Spectacular, starring the world-famous dancers, the Rockettes. The auditorium's extraordinary proscenium arch lends a striking presence that can be felt from any seat in the cavernous hall. A lengthy restoration project, finished in late 1999, led to the careful restoration of many intricate details, including the well-known "The Fountain of Youth" mural. In addition, Radio City notes that 675,000 sheets of metal leaf were used on the ceiling of the Grand Foyer, Promenades and undersides of the mezzanines.