The Mayor of Rio de Janeiro has congratulated Boris Johnson and London for putting on "the greatest Games ever".
Eduardo Paes said the London Games would be a hard act for Rio to follow in 2016, but Brazil is working closely with London to learn as much as possible.
Mr Paes said the connection between Rio and London started four years ago, as the south American city tried to learn as much as possible from the English capital.
"These are Games of legacy, I've been to London many times and it's amazing what you did in the area of the Olympic park," he said.
"The logistics of the operation, the mobility of the people in London is really something.
"Everyone's looking at London, this was already a great city and it became even a greater city so Rio will try to follow you.
"You did so great that we're going to have lots of trouble, lots of work, but we're going to deliver great things in 2016 in Rio de Janeiro."