The Spinnaker Tower by Portsmouth Harbour is the latest landmark in the country to be signed up to support this year's Post Polio Syndrome Day on the 22nd October 2015.
The structure will be decked in turquoise lights for the occasion. It is the fourth time the day has been organised to show support for the 120,000 people in the UK with the debilitating neurological condition.
Other buildings to go turquoise will be Queen Elizabeth Hall in London’s South Bank, the Millennium Bridge in Gateshead, and the tower at Gloucester Cathedral.
In the past the Spinnaker Tower has turned gold, and even purple to raise awareness for various causes and charities. The lights have also been turned out, in support of Global Earth Hour.