Marc Chagall, Over the Town, 1918

The director of the Louvre, where collections span from 6th century BC to the 19th century AD, once estimated that 80 per cent of the museum’s visitors come there to see just one thing - the Mona Lisa. However, Leonardo da Vinci’s masterpiece is considered overrated and unremarkable by some. Why, then, has it captured the imagination of artists over time, with everyone from Salvador Dalí to Andy Warhol adapting it in their own works?