IMAGE COURTESY OF LA VALISE MEXICO CITY Mexico City, a 7,000-foot-high metropolis, was built atop the ruins of the impressive island-city of Tenochtitlán. Hernán Cortés and his army conquered the glistening Aztec capital in the early 16th century.  Today, CDMX bears its long, complex and dynamic history. Aztec ruins sit beside Spanish cathedrals, which in […]