Treasures of the Mediterranean Islands

S1, E3: Get ready to embark on a glorious Mediterranean voyage, without leaving your armchair. Classicist Bettany Hughes takes to the high seas in this intriguing history documentary on BBC Select. Along the way she explores ancient shrines, volcanic Roman thermal baths and a recently discovered mysterious Medusa mask. But what exactly is 'The Invention of Summer' and how did it help fruit to grow?