The Cathedral Basilica of Zacatecas is a Catholic church in Zacatecas City, Zacatecas, Mexico. It is the head temple of the Diocese of Zacatecas, and is dedicated to Our Lady of the Assumption. The cathedral is located in the historic city center, and was declared a World Heritage Site by Unesco. The main facade of the premises is known as one of the most outstanding examples of Baroque art in Mexico.