This week’s photo was taken in Cambridge a few years ago. It is the ‘Mathematical Bridge’. It was originally designed and built in 1749. As myth would have it, this bridge was originally built without nails or screws and was held together only by its various joints. The story goes that it was disassembled by the Fellows of Queens College who then couldn’t put it back together again without the use of nuts and bolts! For more info, see the Queens College website.