monasteries

Padmasambhawa is one of the most important figures of Tibetan Buddhism, his translations of scriptures and turning local demonic forces upon the path of Dharma paved the way for Buddhism in Tibet

When visiting a monastery in Tibet, you will notice that this monastery belongs to a certain sect or lineage or even hat.
Read this article as a quick reference to understand the basics of the different Tibetan Buddhist Sects.

In depth blog post about the practice of debating by monks in Tibet