One of the Age of Enlightenment's most hypnotic images is Ledoux's rendering of his neoclassical theater of 1775 - 1784 in Besancon, surreally reflected in the colossal eye of an unidentified cosmic being.

The magnificent lobby of the Chrysler Building - faced with rare marbles, aglitter with decorative metalwork, and surmounted by a ceiling painted with a totemic image of the tower itself - leads to elevator cabs inlaid with exotic woods in fanciful patterns. The entire route from street to office is invested with ceremony, dignity, and delight.

The skyscraper style first advocated by Louis Sullivan - a tower of strongly vertical character with clear definitions among base, shaft, and crown - has remained remarkably consistent throughout the history of this building type.

During the modern period, the vanguard architect has usually relied on small residential jobs both to supply a steady income and to serve as 'sketches' for ideas that are often later translated to the larger scale of public commissions.

One of the Age of Enlightenment's most hypnotic images is Ledoux's rendering of his neoclassical theater of 1775 - 1784 in Besancon, surreally reflected in the colossal eye of an unidentified cosmic being.

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.

One of the most persistent yet elusive dreams of the Modern Movement in architecture has been prefabrication: industrially made structures that can be assembled at a building site.