Having spent a big chunk of this summer watching the Giro d'Italia, Tour de France, and Vuelta a España, one thing that really stood out to me, aside of course from the gorgeous old architecture, was the beautiful, simple, well-executed new architecture. The multi-family buildings tended to be predominantly white stucco, obviously high-quality windows, and very little frippery. I know I'm repeating myself but if you build something well, then simplicity is key.
Kinda like testing a new pizza joint's mettle by ordering a margherita. If they can do simple well, then they're a good pizza joint. If they make crap pizza and top it with artichokes, caramelized pineapple, creme fraiche, pickled zucchini flowers, seven kinds of cheese, and a drizzle of honey (and don't get me wrong, I loves me a well-made All The Things pizza!), then despite all the fancy toppings, it's still a crap pizza. I wish we'd do our buildings simply and well.