I have another thread about this trip but I wrote another supposed improved itinerary and I don't want confusion from you re-reading my other itinerary. I added Puebla city and deleted Tula. My preference would be to avoid driving. I am open to renting a car if public transportation and taxis won't do the job good enough. Times in parenthesis are just opening and closing times, not that I know that I would spend that much time there. I don't plan how much time I will spend at places.
Saturday, May 20th: Flights to Oaxaca City arrive 4:39pm. 1st night in Oaxaca city.
Sunday: Day trip to Mitla (open 10am-12:30pm, closed Mondays and Tuesdays); Herve el Agua (open until 5). 2nd night
Monday: Day trip to Monte Alban (open 9-3:30); Árbol del Tule (until 8pm). Back to Oaxaca city. 3rd night.
Tuesday: Museo de las Culturas Oaxaca; if time the churches Santo Domingo de Guzmán (7-1 & 4-8); if open, Museo Rufino Tamayo; if time, Museo Casa de Juárez, Centro Fotográfico Alvarez Bravo; Museo Belber Jiménez; Museo del Palacio; Templo de San Felipe Neri, and/or others. 4th night
Wednesday: Bus to Puebla. 5th night. 1st night in Puebla
Thursday, 25th: Museo Amparo (archaeology, 10-6); Biblioteca Palafoxiana (library built in 1646, 10-5), Catedral de Puebla (9-1 & 4-8); possibly Puenta de Bubas, Pasaje Histórico 5 de Mayo (tunnels, archaeology, 10-4); Museo Casa de Alfeñique (old house museum, 10-5), Museo Regional De La Revolución Mexicana (10-6). 6th night, 2nd night in Puebla
Friday: Fundación José Luis Bello y Zetina y Museo (old house, 10-4), Museo "José Luis Bello y González" (separate location); Zona Histórica de los Fuentes (museo del Fuerto de Loreto, mirador, Museo Fuerte de Guadalupe), possibly museo Regional de Puebla (9-6), above sites if not seen yet. 7th night, 3rd night in Puebla
Saturday: bus to Mexico City. find a market or grocery store, and so on. If time, various monuments or Monumento a la Revolución (until 7), possibly Palacio Postal (until 7:30). 8th night, 1st night in CDMX
Sunday: possibly a guided tour; Zócalo, Templo Mayor, Museo del Templo Mayor, Palacio Nacional (Diego Rivera murals), various monuments. 9th night, 2nd night in CDMX
Monday: Day trip to Teotihuacán. 10th night, 3nd night in CDMX
Tuesday: Museo Firda Khalo. Possibly Mercado de Coyoacán or Antojitos Mexicanos Market Juanita. Back to Centro Historico. If time, if not seen yet, Palacio de Bellas Artes, Alameda Central park, various monuments. 11th night, 4th night in CDMX
Wednesday: Museo Nacional de Antropología. If time, Chpultepec park, El Ángel de la Independencia, and/or possibly one of the markets. 12th night, 5th night in CDMX
Thursday: Museo Soumaya (Carlos Slim's art museum), if time Palacio Bellas Artes, various monuments. 13th night, 6th night in CDMX
Friday: Tlatelolco (Zona arqueológica, Plaza), if time museo Franz Mayer. 14th night, 7th night in CDMX
Saturday: Museo Nacional De Arte; possibly Museo Nacional De San Carlos, Museo Mural Diego Rivera, above sights not seen yet. 15th night, 8th night in CDMX
Sunday: Flights back to Detroit leave 2:05 pm