In this first instalment of "Talking About Culture", Francesco Bandarin, assistant director-general for culture of UNESCO, offers an eye-opening account of his two most recent missions to two very different World Heritage sites: Wrangel Island in the far north of Siberia and the mysterious Cueva de las Manos in Patagonia. Although one is home to polar bears and the other to 10,000 year-old cave paintings, both are irreplaceable reminders of the importance of safeguarding humanity's heritage, for our planet and ourselves.