Beneath the impressive 17,000-foot-high Popocatepetl volcano lies bustling Mexico City, home to fantastic museums, archeological treasures and dynamite cuisine. Begin your exploration at the Zocalo, the world's second largest public square and the former site of Montezuma's palaces and pyramids. Then, visit the excavation of the Templo Mayor of the Aztec city of Tenochtitlan to catch a glimpse of Aztec history. And don't miss Palacio de Bellas Artes, where you'll see murals by famous artist Diego Rivera and Chapultepec Park, which features lakes, a zoo and several excellent museums. There's so much to see and do, and with a mild climate and year-round temperatures averaging 70 degrees Fahrenheit, you can do it all any time of year.