Points Of English Industrial Interest

[funranium]

So looking at the picture below, ignoring the feet, tell me what the hell you think this is and when it was built, because it most certainly isn't a natural formation:

Comments

[bilunabirotunda]

"(this shouldn't have been a big question since that was the reason the Romans thought going this far north was worth it)"

Of course, Phil, you follow all Roman advice *slavishly.*

Would you believe I didn't even see that pun until I typed it out?

[funranium]

I do nothing like a Slav! Except perhaps vodka.