Anthropomorphic mask. Teotihuacan, ca. 450. Stone, turquoise, obsidian, and shell, 21.5 x 20 cm. Museo Nacional de Antropología, INAH, Mexico City. Photo Michel Zabé, assistant Enrique Macías. Self-guided audio tours of The Aztec Empire, produced by Antenna Audio, are available in both English and Spanish. Listen to samples Audio sample: Introduction Audio sample: Anthropomorphic mask Samples are in QuickTime .mp3 format. You can listen through your browser provided the QuickTime plug-in is installed, or you can download and listen to them using your preferred mp3 audio application. Click to listen, or right click to save. To download QuickTime Player, go to www.apple.com/quicktime/products/qt/. Avoid Lines Advance Tickets and Audio Tours