Catedral de Puebla has three pipe organs. 3 of 3. This one, the largest, is called the "International" organ built with parts from the United States (electronic parts), Germany (pipes), and Mexico (wood assembly and decoration). The organ has 3376 pipes and is used for special events like weddings and concerts. It was first played 08 December, 1973. The oldest one, built between 1710 and 1719, is no longer used. Another old organ was built in 1737. The two older organs are kept as historical decorations. The cathedral compliments the 1987 Puebla designation as a UNESCO World Heritage Site.