World Cup 2014: The unfinished World Cup venues
23 January 2014 Last updated at 15:55 GMT
Less than five months before Brazil's World Cup kicks off, six out of 12 venues are still unfinished.
Fifa has warned Brazil's World Cup 2014 host city of Curitiba that it could be excluded unless work speeds up.
Wyre Davies visited the sites of some of the World Cup facilities in the northern city of Manaus.