Bank holiday Monday saw us walking around the Shropshire Union Canal. Well, a very small portion of it near the Grindley Brook Staircase Lock, anyway. One of the bridges on that stretch of the canal (bridge 27, if you hadn't guessed, which is actually more of a tunnel) has an unusual architecture in that the brickwork is built into a spiral along the length of the tunnel rather than a more traditional cylinder. The effect of the light hitting the bricks gives the whole thing a wormhole-like appearance, like a swirling vortex to another realm. All very Whovian.