The BBC's Sophie Ribstein takes a walk down memory lane to see if a golden harp she came across was used in a little-known concert in South Africa by Russian-born composer Igor Stravinsky.
Each week, we publish a gallery of readers' pictures on a set theme. This week, it is "jugaad", a colloquial Indian word meaning low-cost inventions and innovation.
Pope Francis has used his traditional Christmas Day message to call for dialogue in the Middle East and a solution to the tensions on the Korean peninsula.
Meet Japan's all-female North Korean fan club. Its leader says they love the communist state's art and music, but don't support Kim Jong-un's politics.
In an interview with the BBC, Donald Trump's top security adviser says the US is ready to "compel the denuclearisation" of North Korea's regime, with or without their cooperation.