There’s no doubt that you could spend the rest of your life exploring Mexico City and still not manage to see it. However, if we’re being realistic, you can get a great sense of the city in 4 or 5 days. Because the city is so sprawling, it’s difficult to explore more than one neighborhood in a day. Take a look at a map when planning your trip to ensure you have enough days to visit each of the attractions on your list. Also, expect to have a low-key first day. Many visitors need a day to adjust to the high altitude; build the adjustment period into your schedule so as not to feel guilty for taking a lazy day.