An Indian woman with her child visits the Indian Museum during a free tour on the International Museum Day in Kolkata, capital of eastern Indian state West Bengal, on May 18, 2017. International Museum Day is an occasion to raise awareness of the importance of museums for the development of society. This year, the event will celebrate the theme "Museums and contested histories: Saying the unspeakable in museums." (Xinhua/Tumpa Mondal)
