There is an archeological site at the top of an easy-hikeable mountain assuming you are in decent shape -- there are 400m of stairs that is also famous for its "good vibrations". The pyramid, El Tepozteco, offers wonderful views of the surrounding area. The site may be reached by walking down Avenida 5 de mayo in the direction away from where you entered the town. Continue until the street ends to the steps which mark the beginning of the trail. Make sure to bring water with you. The hike to the top is free but it will cost 37 pesos in 2010 to access the pyramid. At the top you will also encounter coati, also known as a tejón. These animals, members of the raccoon family, are curious and will attempt to open backpacks to find food.
There is also a beautiful former convent called Dominico de la Navidad. It has been restored and entrance is free. It is located right off the main square.
If you are curious about it, the locals claim UFO sightings are common, wich mostly just adds to the "new age" vibe of the town. Ask about the "ovni" to hear strange tales.
