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It took eight years and 11,000 tons of steel to construct the
213 ft. (65 m) tall Tower Bridge, and when it opened in June
1894 it was regarded as the most sophisticated bridge of its
type in the world. The framework was clad in Cornish granite
and Portland stone to protect the underlying steelwork, and
to give the Bridge a more pleasing appearance. Built with
giant moveable roadways that lift up for passing ships, it is
still considered an engineering marvel and arguably remains
the most recognized bridge in the world.
Tower Bridge
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