Millionaire businesswoman Dolores Olmedo opened this sprawling museum and its grounds, once a hacienda, to the public in 1994. The five-building complex holds nearly 145 works by Diego Rivera (many are of Olmedo and her children), several dozen by Frida Kahlo, and more than a dozen by Angelina Beloff (Rivera's first wife). But it's the collection of nearly 6,000 pre-Hispanic, colonial, folk, modern, and contemporary Mexican art works and artifacts that are the sight to behold and that showcase the wealth of creativity and culture in the country and Olmedo's dedication to preserving it. Take a break from art gazing and wander the grounds where ducks, geese, peacocks, and peahens meander freely. In a separate section, you can see the collection of Xoloitzcuintle (pronounced "sh-oh-lo-eets-kweent-lee"), the hairless dogs, as they romp around and relax near their look-alike statues. (Olmedo was very fond of the dogs and kept several of them as pets.) Every October until late November, the front section of the museum is dedicated to the Dia de los Muertos and is transformed into a series of elaborate altars and exhibits with life-size catarinas. The museum makes for a good day-trip from central Mexico City when combined with a boat ride along the canals of Xochimilco.