Christmas in Mexico lasts for many days. Las Posadas start on Dec. 16th and end on Dec. 24, Noche Buena. During those nine days, people are setting off cohetes (Fireworks) and church bells ring often. It is very noisy in Mexico during this time of the year. Las Posadas are parades of different groups of people walking down the streets. They are from various neighborhoods or sometimes they are specific...