After you visit the Diego Rivera and Frida Kahlo house, walk next door to San Angel Inn. If the wedding scene in The Godfather actually took place in Mexico City, it would have been filmed here. Located inside a former monastery with a beautiful courtyard, this is the kind of legendary place that makes you feel like you should be simultaneously eating steak tacos, smoking a cigar, and drinking a margarita (that was shaken at your table). Yes, it can be a bit touristy, but is definitely worth a trip anyway.