Fortress Study -- The thirteen fortress drawings (Sheet 1 & 2) are a list of the defences erected in the Spanish Highlands by the British army to either stop or delay the forces of Napolion during the Penninsular Wars of the late 18th or early 19th centuries. The artillery firing angles and ranges intersected because most of these forts were so constructed on hilltops, within cannon range of each other.
Note: The above bridge was not really built by the Romans. However, it was built on the site of a Roman Bridge, and a lower bridge serves the community in the valley. At one time, several years ago, there was a restaurant in the bridge, the dinung room being in the center part of the bridge at the point just above the center arch. The dining room was set up in what used to be a prison. The only way out of the prison room was to have a rope lowered into the room from the road above. Of course, in the present day, a passage was built into the prison room for the diners.
I thought this picture facinating when I saw it. It is a villa on the top of a very large standing rock. The angle of the shot does not admit of a way to get to the villa but I am sure that there is. My thought is that it must have taken a lot of energy, effort, and planning to get the bulding materials on site. I wonder how many rooms have been carved in the rock below the villa structure?