Practical, strategic, essential and even artistic, bridges test the skill of engineering. A challenge to gravity and the obstacles of nature subjected to the vagaries of human development.
DEVIL'S BRIDGE - MARTORELL
The Romans already erected bridges of more than one arch, thanks to their skills with the stone and mortar. During the middle Ages some of those bridges were rebuilt, sometimes changing the arch of half point for pointer and higher ones, known as devil's bridges.
(Photo: Sansar)
