For the past 18 months many cities in China have been flooded by millions of dockless share bikes. Those that block pavements or apartment entrances have been removed by authorities to vast storage areas. Viewed from afar they create compelling and mysterious patterns – but also represent waste on an enormous scale

Digital designer Nicholas Rougeux’s Interchange Choreography project finds simple beauty in the apparent chaos of some of the world’s most complicated road layouts – from Birmingham’s iconic Spaghetti Junction to examples from China, Russia and the US

Some urban trees won’t be hemmed in by walls, pavements or concrete, their roots slowly working their way into the very structure of the city

Drain covers mark the entrances to underground tunnels and shafts that shift utilities around the urban environment. While most are plain and functional, many cities add a touch of local flair to brighten up the streets beneath our feet