Your chance to feel very flush: the 18-carat golden toilet hits Britain

It had New Yorkers queueing to spend a penny. Now it’s been plumbed into the palace where Churchill was born. We meet the artist-prankster behind the throne once offered to Trump

Saype’s grassy graffiti: meet the street-art sensation who sprays mountains

The French artist’s giant biodegradable artworks adorn fields, are best seen by drones and last only days. Now, Guardian readers can get their hands on them

From foil-wrapped glaciers to the Alpine storm cyclist: the artists fighting climate change

After too long a silence, art is finally tackling global warming. Here are the big players – including the artist who’s lighting up Alaska

Masters and machines: the best art and architecture of 2019

Van Gogh comes to London, Keith Haring scribbles over Liverpool, Jean Nouvel gets weird in Qatar, and the V&A hits top gear

Tamara Rojo: ‘I want ballet to be for and about everybody’

The artistic director of the English National Ballet on dance in the #MeToo age, embracing people’s flaws and the thing she misses most on tour

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’