In his 2004 book, Stades du Monde: sport & architecture, Angelo Spampinato listed the Maracaña stadium in Rio de Janeiro as one of the legendary temples of football. Built between 1948 and 1950 for the 1950 World Cup, it was deliberately designed to be the largest stadium in the world, seating 183,000 with standing room for 220,000. The World Cup that year opened with Brazil-Mexico (4-0) and ended calamitously with Uruguay-Brazil (2-1).
For 2014 the bottom tier was rebuilt, a new roof added and seating has been reduced to 79,000 with the loss of the Geral, the standing terraces. This took $735 million of Brazilian public money and then the running of the Maracaña was effectively privatised, turned over to AEG, owners of LA Galaxy and the O2 arena in London, on a 35-year contract. A bit of controversy there. An adjacent indigenous museum and a school were demolished.
The Maracaña is heroic in volume and history: Pele's first and thousandth career goals, thousands of match upsets, despair, elation, rock concerts, two masses by Pope John Paul. Its original engineer was Paulo Phiheiro Guedes, working with a team of architects. Evidently, as stadia go, it is very flat, just five storeys from pitch to the top of the top ring. Most of the renovations are hidden: new media centre, locker rooms, auditorium, boxes. There are 1000 new parking spaces under the stadium, another 13,000 spread about the neighbourhood. Visible are new seats and the extended roof which now covers all the seats and is fitted with photovoltaic panels.
Estadio Maracaña is one of twelve FIFA World Cup stadia, but of course its expansion is also part of the preparation for the 2016 Olympics. The World Cup is the preliminary scrubbing of Rio, which will continue for the next two years. China was able to remove great chunks of old housing and historic infrastructure as it gives itself licence to do so. Brazil is doing the same, without the licence. The people are becoming obstructive, there will be delays.