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The West Pier in Brighton was built in 1866 by Eugenius Birch and has been closed and deteriorating since 1975

The i360 is an 162-metre (531 ft) observation tower being constructed on the seafront of Brighton, near to the West Pier. It is designed, engineered, manufactured and promoted by the team responsible for the London Eye. Dutch steelwork specialist Hollandia has prefabricated the tapering steel sections of the tower, known by the team as 'cans'.
The projected cost of the tower is £46 million, with £36 million being funded by a loan from Brighton and Hove city council. In 2014, some local residents launched a petition to oppose the loan. The owners of the site, The West Pier Trust, hope that a successful i360 will lead to the rebuilding of the historic West Pier.
See Link for more details about the project.