The most significant of the Mesoamerican pyramids is the Pyramid of the Sun, located in Teotihuacan, Mexico. This immense structure, built around 200 AD, stands about 65 meters tall and is one of the largest in the world. It played a central role in the religious and cultural life of the Teotihuacan civilization. The pyramid is aligned with astronomical events and serves as a testament to the advanced architectural techniques and urban planning of the Mesoamericans. It remains a key archaeological site, attracting researchers and tourists interested in ancient civilizations.