The south-west doesn't draw many visitors, which is exactly why Telefonplan is worth the trip. This was LM Ericsson's telephone works — telefon, the clue's in the name — a 1930s–40s functionalist factory complex that has become an art school and a creative quarter without erasing the industry it grew from.
Three kilometres, gentle, mostly around a handful of streets. Come up at Telefonplan and the old factory blocks are on top of you. The 72-metre tower is the landmark: its upper windows are Colour by Numbers, a 2006–07 installation anyone can light from a phone — though check it's running before you plan around it.
Konstfack, Sweden's art-and-design university, has filled the converted factory halls since 2004; the degree shows and ground-floor spaces are open, and the long industrial bays are the show. Walk north-west through LM-staden, the 1940s workers' housing, and the factory turns into a neighbourhood.
End on Midsommarkransen's high street — yellow houses, craft studios, small shops — and the T-bana, where a wooden midsummer wreath has hung from the ceiling since 1979.
