The Spinnaker Tower is situated in which English city?

The Spinnaker Tower is a 170-metre (560 ft) landmark observation tower in Portsmouth, England, UK. It is the centrepiece of the redevelopment of Portsmouth Harbour, which was supported by a National Lottery grant. Its shape was chosen by Portsmouth residents from a selection. The tower, designed by local firm HGP Architects and engineering consultants Scott Wilson and built by Mowlem, reflects Portsmouth's maritime history through its being modelled after a sail. The tower was opened on 18 October 2005.

The tower, at a height of 170 m above sea level, is two and a half times as high as Nelson's Column, making it one of the tallest accessible structures in the United Kingdom outside London. The tower is visible for miles around Portsmouth, changing the horizon of the area. It can be seen from the Isle of Wight, the Manhood Peninsula and even Highdown Gardens in Worthing.