The Museo dell'Opera del Duomo is a museum containing many of the original works of art created for the Cattedrale di Santa Maria del Fiore, the cathedral of Florence. As of August 2013, the director of the museum is Fr. Timothy Verdon, an American. It opened in 1891, and now houses what has been called "one of the world's most important collections of sculpture." Among the museum's holdings are Lorenzo Ghiberti's doors for the Baptistery of Florence Cathedral called the Gates of Paradise, the cantorias, or singing-galleries, designed for the cathedral by Luca della Robbia and Donatello, and The Deposition, a pietà intended by Michelangelo for his own tomb.