Credit: Uwebart/ CC-BY-SA-3.0.
The Zocalo is the main square, located in the heart of the historic city centre of Mexico City. Earlier the plaza was known as Main Square or Arms Square. 'Plaza de la Constitucion' is it's the official name today, but it is always referred to as the 'Zocalo Today'.
At 830 x 500 feet, it is one of the largest public square in the world. The Zocale plaza has been a venue for many important events. It has been a witness to Mexican ceremonies, swearing-in of Viceroys, military parades, royal declarations, independence celebrations as well as religious festivals. Contemporary festivals of the Holy Week and Corpus Christi are also held here. It has been a venue for both national protest and national celebrations. It has also become a celebrated place to hold artistic and cultural endeavors.