One of my favorite places along the wall is a Temple of Mithras at Brocolitia.
Worship of Mithras was popular among the Roman legions. Mithraism was a mystery religion, probably originating in Persia. The image of Mithras slaying a bull is present in most all the temples. Here he is:
To reach the Temple at Brocolitia, you have to walk back through a field of cows and sheep, and it is not easy to find. But last year I was determined to find the temple so made the trek through the livestock and down the hill and finally, there it was - the temple. The cows and sheep just looked at me as if to say, "here is another silly tourist." I couldn't believe that I was actually walking into the remains of a Mithraic Temple. There were no other people around and it was deadly quiet and a bit spooky.