Lifschutz Davidson Sandilands has submitted 30 planning applications for what it says is the longest public art work in the world.

The Illuminated River project in central London will see 15 bridges along the Thames lit up in different ways.

The project is a collaboration between the architect and American artist Leo Villareal. The pairing beat off competition from 105 design teams in 20 countries. Finalists included David Adjaye, Amanda Levete, Sam Jacob and Diller Scofidio & Renfro.