Glasgow International review – irrepressible vitality everywhere

Glasgow itself is the focus of its 2016 festival of contemporary art, with 220 artists from around the world jostling for space – and plywood – and everything from the Panama Papers to velvet lobsters

Rowan Moore: the best architecture of 2015

From dumb towers to cool interventions, 2015 saw the gap widen between the big and brainless and the small and thoughtful

Observer critics’ reviews of the year in full

Laura Cumming: the best art of 2015

It was a wonderful year, as Goya’s extraordinary portraits got together, Ai Weiwei broke free and Eric Ravilious took us to the skies

Observer critics’ reviews of the year in full

Norman Foster: ‘I have no power as an architect, none whatsoever’

Ahead of a major urban design conference, the architect says we must plan for a more sustainable lifestyle – and discusses his disappointment at the likely rejection of his Thames Hub airport