Leonardo v Rembrandt: who’s the greatest?

As the masters celebrate big anniversaries, who reaches more powerfully across the centuries – and who deserves to hit the canvas?

Turning water into wine: how did simple H2O become a luxury commodity?

From crystal infusions to water sommeliers and even bottling the frequency of rainbows, the top end of town has well and truly cashed in on the world’s most vital resource

The commodification of Frida Kahlo: are we losing the artist under the kitsch?

As a new exhibition of Kahlo’s photographs opens, Jenny Valentish looks at the merchandise bearing the artist’s image and wonders if we’ve missed the point

Memes, technology and sci-fi: what to expect from art in the US in 2019

Exhibitions in the next 12 months promise to share a wide selection of tech-related artwork, from Instagram inspired pieces to a history of selfies

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