The most sacred of Sikh shrines, the Golden Temple, is a major pilgrimage destination for devotees from around the world, as well as, an ever increasing popular tourist attraction. Construction of the Amrit Sarovar (pool of nectar) was initiated by Guru Amar Das, the third Guru, in 1570 and was completed by Guru Ram Das, the fourth Guru. His successor, Guru Arjan Dev began work on the building after inviting Mian Mir, the Sufi saint, to lay its foundation stone in 1588. Completed three years later, the Harimandar Sahib, or Darbar Sahib, as it is also known, required substantial restoration following its sacking by the 18th century Afghan invader