I have stayed at the Best Western Hotel Ritz on Avenida Madero just 2
blocks from the zocalo a number of times and like it a lot for price
and location. Must sees---Of course the zocalo and guided tour of the
palacio federal is great to understand the Diego Revera murals. Also a
drink at 5 pm from roof of Hotel Presidente is also great to watch the
soldiers take down the flag. Other must sees are Teotihuacan and
Xochimilco as well as the Basilica of the Virgin of Guadalupe. Also if
you have time and are on the right day the Ballet Folklorico at the
Belles Artes is great. Also, Puebla is nice and you can catch a bus
there from the airport if you have time. Also Queretaro has a bus from
the airport and it only takes 2 hours. Have fun.