President’s day marks a moment of reflection in the United States, where citizens acknowledge the contributions of US presidents to the politics and culture of the nation. While some of these men are still with us, the majority are represented only by the monuments and buildings they left to posterity. Indeed, the legacy of a United States President has come to be embodied in a very specific type of building—a library. The last 13 presidents have commissioned national libraries to be built in their name, marking the end of their service. Libraries have also been posthumously dedicated to presidents who did not erect such monuments during their own lifetimes. In either case, recording the lives and legacies of these great men has made for some fantastic architecture. See some of our favorites, after the break!