Day of the Dead (Dia de los Muertos) is observed in Mexico on All Saints Day, November 1 and All Souls Day, November 2nd. Altars are lovingly decorated with photos of the deceased, their favorite foods and drinks, flowers and candy. Customs vary throughout different parts of Mexico, but the country as a whole faithfully celebrates the holiday.
The illustrator José Guadalupe Posada created the famous skeleton dressed as a high-society lady now known as La Catrina and universally recognized as the reigning queen of Dia de los Muertos.
The origins of this unique holiday can be traced back thousands of years to Aztec culture. There are also similar holidays in Europe, Asia, Africa, and Latin America.