The Renaissance began a neo-classical revival which lasted down to almost 1800. Much early colonial American construction was heavily influenced by neo-classical ideas which drew heavily on Greece and Rome. The columns and rotundas of Thomas Jefferson's buildings are obvious examples. In the 19th century their was something of a world-wide revival of the Gothic style. As modern construction techniques and materials were developed architecture underwent a transformation.
Architecture can also be a revealing aspect of the study of other cultures.
A great deal, I think, and well worth the study. As you study other times and cultures, don't leave architecture out. And consider a separate unit on architecture by itself, especially if you have any budding architects among your students. They each have thorough articles on architecture which would serve as a useful starting point for either a parent or a student. This was our 1994 travel schedule.