Portsmouth, Hampshire.
The Spinnaker Tower uses two large, white sweeping steel arcs to represent a sail in the wind. It was part of Portsmouth's plans for the Millennium, and should have been completed in 1999.
They didn't start building it till 2001 and it took 4 years to finish, by which time it was madly over-budget.
I love it.
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An elevator sweeps you up the inside of the building and takes you to the viewing deck.
Just so that you can look down.
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Down through the glass floor
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to the ships below
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and to the sea.