Sardinia: The 20 most beautiful islands in the world.

MUST SEE the thousands of nuraghi (cylindrical Bronze Age fortresses) on Sardinia. The grandest is Su Nuraxe Nuraghe, near Barumini. The complex at Nuraghe Arrubiu, outside Orroli, comes in a close second.

MUST EXPLORE the grottoes and pristine sandy bays of the dreamy coast of the Gulf of Orosei. To go, flag down a fishing boat in Cala Gonone.

MUST TASTE central Sardinia specials such as roasted lamb and braised wild boar, served at Hotel Su Gologone in Oliena.