In the evening of the last Tuesday of each year, Iranians celebrate a fire festival with its roots in the ancient customs and history of the country. People set up bonfires in the streets and jump over them to cleanse themselves of all the misfortunes and impurities of the past year and get ready to welcome the coming New Year. - See more at: http://www.iranvisitor.com/iran-culture/chaharshanbe#sthash.664RQjw6.dpuf