Kari Cahill and Hazel McCague are behind Tombolo, a month-long residency for eight artists on Brow Head. Photograph: Ashley Beer

When Mark Twain famously wrote of “a good walk spoiled”, he was referring to golf. But what about art in the landscape? Our roadside attractions are, (...)

Look closely at the hoarding, just at the St Patrick’s end of The Coombe in Dublin, and you’ll see a piece of drainpipe hanging down. Look agai(...)