The history of London Zoo's architecture is a record of our changing attitudes to nature and animal welfare, as grand aesthetic statements have been replaced by unobtrusive habitats that create the illusion of freedom and authenticity, says Charles Holland

The Grade I-listed Finsbury Health Centre (1938) in Clerkenwell, London, is a revolutionary building designed by the Russian émigré architect Berthold Lubetkin and his Tecton practice.

The Picasso of architecture, the poet of the right angle, the Swiss 
psychotic ... Charles-Edouard Jeanneret had many faces, now explored 
at the Barbican.