See photos: Tower Bridge's 138ft-High Glass Floor Unveiled

03:58, UK, Tuesday 11 November 2014

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   A glass floor has been unveiled along the high-level walkways across London's Tower Bridge

   
   
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   The creation of architect Sir Horace Jones and civil engineer Sir John Wolfe Barry, the bridge took eight years to build and was officially opened in 1894
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   Those behind the £1m project say it is the biggest change to the Tower Bridge Exhibition since it first opened to visitors in 1982
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   The floor panels, each 36ft long and 6ft wide and weighing 530kg, sit 138ft above the River Thames
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   Visitors are offered a unique view of the attraction's famous bridge lifts
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   Admission is £9 for adults, £3.90 for children aged between five and 15 and £6.30 concessions, while entry is free for under-fives
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    A glass floor has been unveiled along the high-level walkways across London's Tower Bridge