On any day, the Taj is gorgeous. Under a full moon, it is ethereal. The Taj Mahal opens for night-viewing only five days a month, around the full moon night. Only 50 people can enter at once and slots are restricted to 30 minutes. Sign up with the Archaeological Survey of India for a night tour. Or book the Kohinoor Suite at The Oberoi Amarvilas for an uninterrupted view.