There are various kinds of prayer wheel in Tibet. Some are placed on the roofs ... or spun by the hot air rising from lamps and stoves. Large prayer wheels stand in the entrances of temples ...

Large prayer wheels stand in the entrances of temples ... Click a button to explore other objects in the timeline Tibet 19th Century CE ...

Since that tragic day, the CTA has organized an annual prayer service to remember those who lost their lives and those who suffered in the struggle for Tibet's freedom, Tibet.net reported.