Drepung is the largest monastery in Tibet, and, at its peak, it was considered the largest monastery in the world. It was founded in 1416 by a disciple of Je Tsongkhapa, founder of the Gelukpa School.
Drepung Monastery was one of the best schools of the Middle-Ages and during the 1930s it housed over 10,000 monks from all regions of Asia. After the Chinese invasion and the persecution that followed, many of them retreated to India where they started a new monastery. Now only a few hundred monks remain at Drepung, but its history makes it a popular attraction.