Have you ever been to Tibet in China? Is it hard to go?

[Liffity]

After searching some information about traveling to Tibet online, I am impressed deeply by the charming scenery in Tibet. So I am going to travel to Tibet in the coming mouth. It must be a wonderful tour because there are lots of beautiful spots such as Potala Palace, Jokhang Temple, Sera Monastery, Namtso Lake, Mt Kailash, Mt Everest, etc.