In Pictures: The Construction Of Tower Bridge

What do you get when you cross eight years, five major contractors, 432 construction workers, 11,000 tons of steel and a shedload of Cornish granite and Portland stone? Tower Bridge of course — designed by City architect Sir Horace Jones, who later went on to do Leadenhall and Billingsgate markets. Opened in 1894, we can't quite believe the work that went into getting this London icon off the ground.