Museum of Modern Art (Spanish: Museo Nacional de Arte Moderno), Paseo de la Reforma. Permanent exhibitions include the work of Frida Kahlo, Diego Rivera, and David Siqueiros. It showcases temporary exhibitions of Mexican and international art.
National Anthropological Museum. Tues - Sat 9AM - 7PM. Closed Mondays. An enormous complex with permanent exhibitions highlighting the development and cultures of Mexico's many indigenous peoples. Also, the museum itself is famous for its architecture. Delegate two hours at least and be sure not to miss the Aztec "calendar stone." Admission as of 05/00 is $51; on Sundays, admission is free for Mexican citizens and foreigners with Mexican residence. Admission is also free for children under 13, students and teachers with ID card, and seniors over 60.
Chapultepec Castle. Once the home of the Spanish Viceroys, a military college and scene of historic battle during the Mexican-American War, and the palace of Emperor Maximilian and Empress Carlota. It is now a museum. You can walk up the winding hill road, or take the tram that departs every twenty minutes for a fee of $13. There are two parts to the museum: the historical building itself, and the Museum of National History. Don't miss the Roman-style gardens and observatory on the roof of the building. The castle also boasts a fine view of Mexico City and its surroundings. Admission to the Castle is $51 as of 05/09, but free on Sundays. A fee is charged to use a video camera and flash photography is not permitted.
Lago de Chapultepec. There are actually two lakes that are connected, a bridge spanning them at mid-point. Lounge around the shore, or rent a canoe or paddleboat to explore.
Monument to the Heroic Children. This impressive white marble monument stands at the entrance to Chapultepec Park in front of the Castillo. It honors six youths who gave their lives defending the stronghold from US troops in 1847.
The park also includes a zoo, an amusement park, a botanical garden and landscape walks through the trees. Vendors line the paths of many areas where you an buy souvenirs, juices, tacos, ice cream, toys, and even lucha libre masks.