Many people have seen the movie The Killing Field and many have visited the killing field near Phnom Penh, the site most people know of. There are actually about 300 killing fields, though, spread throughout the country. There is such a large number of these fields because the number of Cambodians killed by the Khmer Rouge was great. It is generally thought that the Pol Pot regime was responsible for the deaths of perhaps 1.5 to 2 million people. The killing field that most tourists visit is the orange dot along the river, immediately south of Phnom Penh (next to the row of three yellow prison dots).