See the old and the new in mexico city in one day and take another day to wander the unesco world heritage site of teotihuacn the city of the gods visit latin americas largest church trace mexicos turbulent history on diego rivera murals and at an anthropology museum and admire the modern sleekness of paseo de la reforma youll beat the crowds at teotihuacn with early morning arrival and climb the sun and moon pyramids in peace then wrap up with a visit to a local obsidian factory a