The Museum of Modern Art exhibits work by noteworthy 20th-century Mexican artists. The main building consists of four skylit rotundas, housing canvasses by Dr Atl, Rivera, Siqueiros, Orozco, Kahlo, Tamayo and O’Gorman, among others. Las Dos Fridas, possibly Frida Kahlo’s most well-known painting, is in the Sala Xavier Villarrutia. Temporary exhibitions feature prominent Mexican and foreign artists. Just northwest of the Monumento a los Niños Héroes (access is via Paseo de la Reforma), the museum has a pleasant café beside a sculpture garden.