For this reason, arch bridges must be made of materials that are strong under compression. The Romans used stones. One of the most famous examples of their handiwork is the Pont du Gard aqueduct ...

Rachael Hood, Senior Editor The Stone Arch Bridge is a must-see for any architecture buff. This 2,100-foot granite and limestone bridge (featuring a total of 23 arches) was constructed in 1883 and ...