The collection of sculptures on the ground floor of the Bargello Museum in Florence, Italy, contains one of the world's most important collections of 16th-century sculptures, including Michelangelo's "Bacchus"  and  "Pitti Tondo," Giambologna's "Mercury" and "Florence Triumphing over Pisa," and Cellini's wax bozzetto (or small model) for his "Perseus with the Head of Medusa."