Neil MacGregor continues his series on the expression of shared beliefs in communities around the world, and focuses on light.

He experiences the sunrise whilst inside the monumental stone passage tomb at Newgrange, Ireland, a structure older than Stonehenge or the pyramids in Egypt. Here, on the winter solstice, thanks to the design of the tomb, a bright, narrow beam of sunlight reaches deep inside the structure.

He also considers the story of Amaterasu, the Japanese sun goddess, whose decision to hide herself in a cave plunged the world into darkness, and reflects on how - centuries later - the image of rising sun became closely linked with Japanese national identity.

Producer Paul Kobrak

The series is produced in partnership with the British Museum