London in mid-January can be a dark, gloomy city – but not this year. For four nights, the capital's dark streets are being lit up by more than 50 light-based artworks across the city as part of the Lumiere arts festival.

Lumiere London 2018
People cycle to power the installation The Rose by Mick Stephenson at Westminster Cathedral Plaza Chris J Ratcliffe/Getty Images

Organisers say more than a million people attended the free festival when it was first held in the city two years ago, enjoying the rare chance to stroll usually traffic-clogged streets closed to traffic. Helen Marriage, director of arts charity Artichoke, which organises Lumiere, said the festival taps into a hunger for live experience — "the 'be there or you've missed it' moment" — in an age when we spend much of our time staring at screens. "Standing in a crowd, sharing a moment, is really important," she said.

IBTimes UK presents photos of some of the installations dotted around London. For more information, download the free app for Android or iPhone. The full programme is on the Lumiere website.