1 / 3   If you walk along a street in the city of Van in eastern Turkey, you’ll be impressed by the artwork on the walls. /CFP Photo

2 / 3   The vivid illustrations of Leonardo da Vinci's "Mona Lisa," Johannes Vermeer's "Girl with a Pearl Earring" and Salvador Dali's "The Persistence of Memory" are all made from thousands of plastic bottle caps. /CFP Photo

3 / 3   As part of the recent "Recycled Street" project, recycled materials such as plastic caps, rubber and waste metal were used to create street art to promote environmental awareness. /CFP Photo