Moai statue from the Island of Rapa Nui, also known as Easter Island. Director of the British Museum, Neil MacGregor, looks at one of the most instantly recognisable sculptures in the world: a giant stone carving from Easter Island in the Pacific Ocean. Why were these deeply mysterious objects made and why were many ultimately toppled over? Internationally-renowned sculptor Sir Anthony Caro and Steve Hooper, an expert on the arts of the Pacific, both respond to this monumental work of devotion. (Duration: 15 mins)