There is suppose to be about 300 of them still in existence.

Despite them being magnificient and required some skill to build.There is no written history of the people that made them, nor for what purpose they where made. What is also amazing is how well they where made - the area in Tibet is known for many earthquakes, yet despite that many of the towers survive today.

It is generally believed they where built by an ancient kingdom to protect the residents of invaders.

When the mongules conqured the area - the people's histoy and teaching where lost.