Given the familiarity of architecture in, and as constitutive of, our physical surroundings, it is strongly intuitive to think of architectural objects simply as buildings, in the way we think of the objects of the sculpture artform as sculptures, or the objects of cutlery as forks, knives, and spoons. Yet such intuitions may be misguided. For one, though some built structures—including roadways, bazaars, and newspaper kiosks—are not buildings per se, we may take them to have architectural properties and thereby consider them as architectural objects. For another, the outputs of architecture are not limited to built structures but include as well models, sketches, and plans, and this variety prompts questions as to whether these are all reasonably considered architectural objects and which, if any, such form of output represents a primary sort of object in architecture. A third consideration is the focus in architecture, not solely on whole or individual buildings, but also on parts of buildings and buildings considered in context, among other buildings and in landscapes (downwards and upwards compositionality or modularity). A fourth consideration is that—as with music and photography—where multiple instantiations of a given work are possible, we may dispute whether the work is identical to the instancing built objects or else to the common entity (e.g., plan) on which those instances are modeled. In addition to such challenges, the intuitive view must best alternative views.