1. What is the name of the famous river in Lang Son that flows in the opposite direction?

  • A. Da Rang River
  • B. Ky Cung River
  • C. Ky Lua River
Exactly

The Ky Cung River is the main river of Lang Son province, approximately 243 km long. It is the only river in northern Vietnam that does not flow northwest-southeast into the East Sea, but instead flows southeast-northwest towards China.

2. What is the name of the famous temple in Lang Son that has been mentioned in folk songs?

  • A. Tan Thanh Pagoda
  • B. To Thi Pagoda
  • C. Tam Thanh Pagoda
Exactly

Tam Thanh Pagoda, located within Tam Thanh Cave, is a historical and cultural relic and a famous scenic spot in Lang Son province. Ancient folk songs have praised this site:

Dong Dang has Ky Lua Street.
There is Lady Tô Thị, and there is Tam Thanh Pagoda.
Who will go to Lang Son with me?
My parents' efforts in raising me were worthwhile...

3. Which famous mountainous region in Lang Son often experiences frost and occasional snowfall during the winter?

  • A. Fansipan
  • B. Mau Son
  • C. Bac Son
Exactly

Mau Son is the highest mountain range in Lang Son province, with diverse topography and an average altitude of 800-1,000m above sea level. Mau Son comprises a cluster of 80 mountains of varying sizes, according to the province's official website.

In winter, temperatures in Mau Son drop below freezing, with frequent frost and occasional snowfall. The average temperature here is 15.5 degrees Celsius, and the mountain peak is covered in clouds year-round.

4. Is the famous 'Dinosaur's Backbone' located in Lang Son?

  • A. Binh Lieu
  • B. Ta Xua
  • C. Phia Po
Exactly

One of the three "dinosaur spines" in Northern Vietnam is the winding trail on the summit of Phia Po (Cha Mountain), located about 45km northeast of Lang Son city. This landmark belongs to Mau Son commune, Loc Binh district, Lang Son province. Situated at an altitude of 1,541m above sea level, Phia Po peak is known as the "roof of Lang Son".

5. What kind of 'unusual pho' can tourists try when visiting Lang Son?

  • A. Sour Pho
  • B. Pho Cuon (Rolled Pho)
  • C. Pho in a stone bowl
Exactly

Sour pho is a specialty of Lang Son province. Although called pho, its appearance and preparation are different from traditional pho. The difference lies in its sour, sweet, cool, and refreshing sauce instead of hot broth, and the way it's eaten mixed like a salad.