Clifton is one of Bristol’s oddest-looking buildings and its position is even odder, standing in stark isolation on the highest spot in Bristol on the site of an ancient British camp just above the Clifton Suspension Bridge. You can still see the outlines of the hill-fort’s ramparts more than 2,000 years later. This odd, tower-like structure was, in fact, a windmill, strategically placed to take advantage of the prevailing south-westerly winds and it did its job well until mighty winds sent…