Three tourists who vandalised China's Great Wall -- one of the country's most popular historic landmarks --  have been detained and fined, officials said yesterday. Two men and a woman were detained Sunday after scrawling their names on the wall with a key, wire and other sharp objects, administrators of the Badaling special tourism zone said in a statement. Around 70 kilometres from Beijing, Badaling is the most popular section of the wall for tourists. The statement did not offer details on the amount they were fined or the length of their detention. Under China's law for protecting cultural relics the fine for carving or scrawling on a historic building is less than 200 yuan ($31).