蜜芽传媒

Vincent van Gogh's sunflower paintings are some of the world's most recognisable and best loved pictures. Now, two of his original masterpieces will be shown together in London for the first time in more than six decades.

The pictures - worth an estimated 拢100m each - are expected to attract huge crowds, as visitors to the National Gallery get the rare chance to compare and contrast them side by side.

Art historian Martin Bailey joined us to explain why the paintings remain so popular.