1. Aqueducts
... built, poured concrete had become the basic building material" (Grolier, 1993). At that time, underground pipes were being made of stone, clay, wood, and even lead (Grolier, 1993). Aqueducts were built in many areas of the Roman empire. "Remains of these aqueducts still exist. A few of them, such as the one at Segovia, Spain, have remained in use" (McDonald, 1998). Shown in Figure 1, is ... in Segovia, Spain. At a height of 128 feet, the aqueduct was constructed from granite. It is a fine example of dry masonry. Figure 2 shows one of the most remarkable old roman aqueducts, the Pont du ...
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- Grade Level: High School