A time capsule has been buried under what will be the pitch at London's new Wembley Stadium.
Wembley Stadium was lit up to celebrate the successful 2012 bid
The Football Association's Sir Trevor Brooking, stadium architect Lord Foster and former Olympian Dame Mary Glen-Haig placed mementos in the capsule.
They include a signed England football shirt, 2012 Olympic bid memorabilia and part of the old stadium's twin towers.
Sir Trevor told the BBC he was keeping his fingers crossed that the stadium would open for the 2006 FA Cup final.
He told BBC Radio Five Live: "At present they're still saying that it will be completed on time.
"But I think it's really, as I say, first few weeks seeing what the winter's like weather wise.
"It seems to be moving on... I think it will be close, but fingers crossed."
The chief executive of Wembley Michael Cunnagh said a lot of thought had gone into what the capsule should contain.
He said there were also photographs of old Wembley and line drawings of the new stadium.
Football legend George Best - whose funeral took place on Saturday - would also be honoured, Mr Cunnagh said.
"We're going to put in a replica shirt from that 1968 European Cup final that was held at Wembley.
"George scored that night in a memorable 4 -1 victory against Benfica, he also played two other times at Wembley - for Northern Ireland - but that was by far his most memorable match."
The capsule is being buried before the new turf - which is being grown at a secret location until the stadium opens - is laid.