The widest bridge in the world.
Right between St Isaac's and the City Hall there is a bridge that is very hard to see. It is as wide as the adjacent Isaakievskaya Square. And it currently serves as a parking lot. Yet, at 319' 2'' (97.3 meters) the so-called Blue Bridge (Siniy Most) is the widest bridge in the world. To the dismay of the people of St. Petersburg the Blue Bridge was not accepted as the Widest Bridge in the World by the Guinness Book of Records. The reason for this is unknown (probably there is no reason at all). If you find a wider bridge elsewhere in the world, please, let us know.
The Blue Bridge was designed by architect V.I. Geste and built of cast iron in 1818. In 1842-1844 it was reconstructed and widened to 319' 2''. The name "Blue Bridge" originated from the tradition of color-coding downtown bridges. Hence the lower part of the Blue Bridge is still painted blue.