Fort of Diu was built over six years from 1535 A.D., following a defence alliance between Bahadur Shah, Sultan of Gujarat, and the Portuguese, when Humayun, the Mughal Emperor, attacked the former. The bottomless canals flanking the fort, the giant watch tower (now converted into a lighthouse), the gaol, the cannons, the vestiges of foregone battles (like mounds of iron shells from enemy cannons), the stone galleries, gigantic windows and the granite expanse will take you back to another bold era. The mist that shrouds the fort throughout the year completes the picture of historic adventure, romance and intrigue.