PICK OF THE DAY

ANCIENT INVISIBLE CITIES, 9PM, BBC2

THIS week, historian Michael Scott (pictured right) is in Athens to explore the secrets of this ancient city, with the help of cutting-edge 3D scanning technology. He begins on the Acropolis, where, in the late sixth century BC, the Athenians overthrew a tyrant in order to set up the world’s first democracy. From defences buried deep in underground car parks and labyrinthine silver mines to a town and naval base submerged in the sea, Scott’s journey j of discovery reveals a side to this remarkable city unseen b by even the most h history-hungry tourist.