With the annual Rath Yatra festival commenced on Sunday, lakhs of devotees lined the streets outside the 12th century Jagannath temple in Puri. Being touted as one of the important Char-Dham Pilgrimages, the temple is of utmost respect and peace for Hindu devotees across the country. Meanwhile, the Jagannath temple also serves as a mysterious historical structure and several astonishing facts regarding the temple will leave you stunned. From 'why rain looming over the annual festival over the years' to 'how the old idols are buried below the new idols manually after every 12 years' - several enigmatic activities have caught the travellers' eye across the globe. Watch News Nation's special show Rahasya to know some of these mind-boggling facts.