"Lupita" is the nickname for Guadalupe, and the twelfth of December is the feast day of the Virgin of Guadalupe, Patroness of the Americas and beloved mother of Mexico. Festivities begin a week in advance and culminate in huge street parties and fireworks with marching bands and dancing giant puppets. These festivals are called "Candelas."
We happen to live across the street from a small church dedicated to the V. of G., and so of course we attended the candela. Fireworks like these are not to be missed.
I hope the above video works. It shows the last portion of the burning of the castillo - an amazing, sixty-to-seventy foot structure made of bamboo (I think). It had six separately rotating wheels with designs on them - doves, hearts, stars, and in this case, Mickey Mouse. A Giant wheel on the front rotates along a different axis, and this one was a spiral that was truly wonderful. And lastly, at the top, yet another rotating wheel spells out in words of fire "Viva La Lupita 2012."
Compare the height of the castillo to the telephone pole on the right. It's easily four stories high.
Alas, I didn't get any good pictures of the toritos ... the castillo is the main event, but before that, there are several toritos, which are paper mache and bamboo bulls decorated with fireworks and made to be worn over the head. Volunteers wear the bulls, set them alight, and dance around, charging the crowd and spinning. You can see the bull in the background to the left.