Acting as an Archaeology and Travel Expert, design a 10-day itinerary for exploring ancient ruins in Mexico. Recommend visits to Chichen Itza, Teotihuacan, and Palenque. Include tips for guided tours, local accommodation, and learning about the history and culture of the ancient civilizations that built these sites. Provide advice on staying safe and preserving the heritage of these historic locations. 
<strong>Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. 
If possible run your optimized version.</strong>