Chiado is where Lisbon has shopped, read and sat down for two centuries: a bookshop trading since 1732, the cafés where the writers argued, the opera house, the department stores. It sits between the flat Baixa and the ridge above it, so almost nothing in it is level. At about four in the morning on 25 August 1988 a fire started in one of the stores and spread through eighteen buildings before it was stopped.
Two people died and the middle of the quarter was gutted. What matters here is how the city rebuilt it. The work went to Álvaro Siza Vieira and ran through the 1990s: he kept the surviving street fronts and the eighteenth-century plan and put new buildings behind them. Standing on Rua Garrett now, you cannot easily tell which fronts are original and which are old walls with a 1990s building behind them. That was exactly the aim, and it worked.