Teotihuacan is an ancient Mesoamerican city located just outside of Mexico City. It was once one of the largest cities in the world and is now a UNESCO World Heritage site. The main attractions in Teotihuacan are the Pyramid of the Sun and the Pyramid of the Moon. Climbing these pyramids offers breathtaking views of the surrounding area. Exploring the ancient ruins and learning about the history of Teotihuacan is a fascinating experience.