Rankin’s best photograph: a supermodel in a cow mask

‘I didn’t think models were being treated as people. So we borrowed a farm, put some in masks – and shot them in a cow barn then a pigsty’

Party palaces and funky funhouses: Freddy Mamani’s maverick buildings

With pinball machine interiors and animal-shaped facades, Mamani’s wild venues have transformed Bolivian architecture. Now the former bricklayer is taking ‘neo-Andean’ style to Paris

Norman Foster’s Bloomberg office in London wins Stirling prize

European HQ sees off Tate St Ives extension to 2018 prize with environmentally friendly design

Architect Nicholas Grimshaw wins RIBA gold medal

The designer of the Eden Project and Waterloo station’s international terminal awarded the UK’s highest accolade for architecture

Ethereal underworld: exploring Helsinki’s colossal new art bunker

In a vast expanse beneath the Finnish capital lies a soaring circus-top culture hub. Will the €50m Amos Rex art museum put the city at the forefront of Europe’s art scene?