旅游自古有之。在古代，旅游活动往往伴随着政治、军事、外交、文化和宗教等活动而展开。象汉代张骞出使西域，开拓了著名的“丝绸之路”；唐代玄奘拜佛求学，写下了《大唐西域记》。尽管他们的所做所为惊天动地，但总的说来那时候的旅游还没有形成气候。随着社会的发展，历史 Travel has always existed. In ancient times, tourism activities were often accompanied by political, military, diplomatic, cultural and religious activities. Like the Han Dynasty Zhang Qian ambassador to the western region, opened up the famous “Silk Road”; Tang Dynasty Xuan Zang Buddha study, wrote “Datang Western Records.” Despite the earth-shattering actions they have done, tourism at the time was not yet climate-friendly overall. With the development of society, history