Pronounced “keht-zahl”. The color of Our Lady of Guadalupe’s veil. It was worn only by Aztec nobility and the upper classes. It takes its name from the Quetzal bird, whose iridescent blue-green feathers were prized more than gold by the Aztecs.

The photo featured is an Aztec headdress crafted from these feathers. This artifact is from an exhibit in the National Anthropological Museum of Mexico.