
Spinnaker Tower
observation tower · PortsmouthThe Spinnaker Tower is a 170-metre observation tower on Portsmouth Harbour, opened in 2005 as the centrepiece of the harbour's redevelopment. Designed by the local firm HGP Architects, its two white arcs recall a spinnaker sail. Three viewing decks at 100, 105 and 110 metres look out over the city and over Portsmouth and Langstone harbours.