Of course, the bridge was never designed to be a tourist attraction per se – but it certainly is today – replete with a glass-floor on each of the two towers. Climbing the 209-steps-up essentially culminates in the traversing of the two towers – “North” and the “South” which are 213-feet above the water of the River Thames. Along the side of the Walls are arranged historical write-ups about this or that fact. For instance, a “bail of hay” has to hung beneath the arms of the bridge when these arms are not in operation and/or receiving repair.