Built in 1999, The Center for Science and Industry in Columbus, Ohio is a masterpiece of precast technology, demonstrating what lengths a precaster can go to work with an architect and move the technology of precast design to the next level. The precaster worked closely with architect Arata Isozaki to form a new type of precast panel that took on new dimensions and heights in architectural precast. The 158 precast concrete panels that form the outer walls took about 33,000 hours to design, engineer, construct and erect.

The TransAmerica Tower in San Francisco designed by architect William Pereira is among the seven wonders of the precast world because it showcases the heights that precast can attain, and because it exemplifies how Pereira used precast to create his unmistakeable style. Pereira often used precast concrete to create geometric facades.

My third entry in my "Seven Wonders" series is the The Sunshine Skyway Bridge is a bridge spanning Tampa Bay, Florida a structure that, to my mind, is a fine example of function and beauty combined in one structure.

The beauty of precast sometimes lies not in its aesthetics, but in its functionality and flexability. The precast used for line the "Chunnel" (the  Channel Tunnel that undersea rail tunnel linking the United Kingdom with northern France beneath the English Channel).