by Sarah Klein. So-called superfoods are nutritional powerhouses that help build bones, prevent chronic diseases, improve your eyesight, and even keep your mind sharp.
Tower Bridge (built 1886â1894) is a combined bascule and suspension bridge in London. The bridge crosses the River Thames close to the Tower of London and has become an iconic symbol of London.Tower Bridge is one of five London bridges now owned and maintained by the Bridge House Estates, a charitable trust overseen by the City of London Corporation.he Tower Bridge Exhibition is a display housed in the bridge's twin towers, the high-level walkways and the Victorian engine rooms.
Conceived in 1884, construction of the tower began in 1887 and involved some 50 engineers, 100 iron workers, and 121 construction workers. It was completed on March 31, 1889, at a cost of 7,800,000 French gold francs. The main structure of the tower is composed of wrought-iron, coated (at present) with bronze paint. It is 324 metres (1,063 ft) in height, weighs a total of 10,000 tonnes (73 percent wrought-iron), and for 41 years it remained the tallest man-made structure in the world, until superceded by New York's Chrysler Building, designed by William van Alen (1883-1954), in 1930.