Before the professionalization of architecture in the nineteenth century, it was standard for an aspiring mason or carpenter to begin his apprenticeship at fourteen and to become a master builder by his early twenties.

Always beware an unsigned architectural design.

As with many other folk beliefs, 'feng-shui' undoubtedly incorporates some scientifically correct observation or received wisdom based on direct experience of natural phenomena; but it needs to be dealt with skeptically as a credible system of thought. Some feng-shui prescriptions can certainly lead to desirable results.

Although prefabrication has a long history - the ancient Romans shipped pre-cut stone columns, pediments, and other architectural elements to their colonies in North Africa, where the numbered parts were reassembled into temples - the idea took on a new impetus with the technological advances of the Industrial Revolution.

Experimental architecture by its very nature is more prone to the depredations of time and natural elements than buildings made from conventional materials through traditional methods. Avant-garde architects often simply do not know how the products of their imagination will perform when implemented, especially if untested components are involved.

Architecture was the last of the major professions to devise a formal 'cursus honorum' before its practice could be undertaken.

Elevated locations imply elevated purposes, even in American cities departing as radically as Los Angeles does from the traditional planning patterns of the Eastern Seaboard.