A hot dog bus and a snowman in June: the best in US public art this summer

With skyscraper video art in California and 26ft statue of Marilyn Monroe in Connecticut, there are now even more reasons to stay outside this season

Yves Saint Laurent co-founder’s rare art and artefacts to go on sale

Pierre Bergé’s eclectic items, which includes 1961 Picasso sculpture, up for auction

Artists on climate change: the exhibition tackling a global crisis

At the Storm King Art Center in New York, a group of artists has come together to showcase works that cover a growing, and often ignored, issue

The baroque delights of Antwerp

Historic Antwerp is opening its gilded stucco doors to lovers of Europe’s most decadent style

Buy a masterpiece for 67p! New stamps by Tracey Emin, Yinka Shonibare, Grayson Perry and more

Tracey Emin drew her dying mother, Grayson Perry honoured Warhol, and Yinka Shonibare sneaked a bit of Africa into some English brollies … artists reveal all about their dazzling new stamps