The Pyramid of Cholula is considered to be the biggest pyramid in the world. A large part of the pyramid itself is hidden underground. It is estimated that the The Pyramid of Cholula is about one-third larger than the Great Pyramid at Giza. The construction of the The Pyramid of Cholula probably began in the 3rd century BC and it was finished in the 9th century AD. Some sources indicate that it was built at the same time as Teotihuacan .
The monumental work has been dedicated to the god Quetzalcoatl. The base of the pyramid measures 450 x 450 meters, the height of the pyramid is 66 meters. The Aztecs believed that this huge structure was built by Xelhua, one of the seven giants of the Aztec mythology. The Pyramid of Cholula has about 8 kilometres of tunnels and archaeological research continues there. The orientation of The Pyramid of Cholula relates with the summer solstice.
On the very top of The Pyramid of Cholula is a catholic church called Iglesia de Nuestra Señora de los Remedios. Its construction was finished in the year of 1575, and in 1629 it was consecrated.
After the fall of Teotihuacan The Pyramid of Cholula became an important centre of the Mayan culture. The pyramid has not been discovered until 1910. According to a legend , people hid it under a layer of soil to save it from the Spanish conquerors. The Pyramid of Cholula belongs to one of the most important monuments in the state ofMexico .