A south coast landmark which has been dogged by technical difficulties finally has a reason to celebrate, as it welcomes its 250,000th visitor.
The Spinnaker Tower overlooks Portsmouth's Gunwharf Quays
Portsmouth's Spinnaker Tower was due to open for the Millennium, but it was finished five years late and cost £36m.
In October 2005, when it finally opened to the public the project manager got stuck 100ft (30m) up the external lift.
But the council said the problems with the attraction have been resolved and it was now "a huge hit with visitors".
'South coast icon'
To celebrate the 250,000th visitor to 170m high viewing tower a series of events, including an abseil down the tower by four Royal Marine Commandos, have been planned.
A spokesman said: "Beating all visitor targets, the Spinnaker Tower has become a huge hit with visitors and is already establishing itself as a real icon for the south coast and the UK, drawing in visitors from all over the world."
The tower overlooks Gunwharf Quays and has three public viewing decks and what is claimed to be Europe's largest glass floor.
Visitors can enjoy views including Nelson's flagship HMS Victory, Portsmouth Naval Base, the Isle of Wight, the Solent, Portsmouth and the Hampshire countryside.
Council tax-payers in Portsmouth had to foot the £11m-plus overspend on the tower.