Laos is a Southeast Asian country traversed by the Mekong River and known for mountainous terrain, French colonial architecture, hill tribe settlements and Buddhist monasteries.

Luang Namtha is a district as well as the capital of Luang Namtha Province in northern Laos. The city lies on the Tha River. Luang Namtha is a popular tourist destination, and a base for treks, biking to the surrounding hill tribe villages.

Luang Prabang, the ancient capital of Luang Prabang Province in northern Laos, lies in a valley at the confluence of the Mekong and Nam Khan rivers. Inhabited for thousands of years, it was the royal capital of the country until 1975.

The Mekong, or Mekong River, is a trans-boundary river in East Asia and Southeast Asia.

Muang Sing is a small town and district in Luang Namtha Province, northwestern Laos, about 60 kilometres northwest of the town of Luang Namtha and 360 kilometres northwest of Vientiane.

The Phou Hin Poun National Biodiversity Conservation Area, formerly known as the Khammouane Limestone National Biodiversity Conservation Area, is one of 21 National Biodiversity Conservation Areas of the Lao People's Democratic Republic.

Vang Vieng is a small town north of Vientiane, on the Nam Song River in Laos. It's surrounded by striking limestone mountains and caves. Tham Poukham, to the west, is a cave with a blue-green lagoon and a reclining Buddha statue.

Vientiane is a prefecture of Laos, in the northwest Laos. The national capital, Vientiane, is in the prefecture. The prefecture was created in 1989, when it was split off from Vientiane Province.