Paro Tshechu, the Paro Festival, is a renowned event in Bhutan that attracts attendees from nearby regions. On the festival's final day, monks unveil a grand embroidered painting, known as a Thangkha or Thongdrol. It is believed that merely gazing upon a Thongdrol can purify the sins of the observer. This is one of the most popular festivals for visitors into Bhutan.