A work of art hiding in plain sight in Tokyo. You don’t have to be an art expert to have heard about Van Gogh’s Sunflowers. As one of the world’s most famous artworks, Sunflowers has been widely praised for its depth of expression within a limited colour palette, and people travel far and wide to see them on display. There were once seven Sunflowers in existence – the Dutch painter often painted copies of his best works — until one with a unique blue background, which was shipped to a collector in Japan in 1920, was destroyed by fire during...