That Xieng Tung (Xieng Tung Stupa) is the most important stupa in Muang Sing. It is said to contain the adam's apple of Buddha. To the left of the stupa are some stairs which lead to a sacred fountain and a sacred stone. If you follow a path to the right of the stupa (be careful!) downhill you might be able to find the old moat and wall of the stupa. The biggest festival of the year, That Xieng Tung Festival, is held here every year during the full moon of the 12th lunar month (usually in late October or early November). The stupa is located 5.5 km from the center of town, on the road towards Luang Namtha, situated on top of a hill. A dirt road leads up to it on your right as you're coming from Muang Sing.

The Muang Sing museum about local culture and history has an excellent collection of historically and religiously significant pieces, located on the top floor. The building was once the royal residence of the Jao Fa (Prince), Phanya Sekong. Open 9:00 - 11:30 & 1:30 - 3:30, Monday-Friday. Admission 5,000 kip (plus 5,000 kip extra for Akha film).

The Muang Sing market is one of the best places to see ethnic groups in northern Lao, as people from Akha, Lue, Hmong, Yao, Tai Dam and Tai Neua villages come to sell their fruits, vegetables, meats, non-timber forest products and crafts. The best time to visit the market is in the early morning. The market is also a great place to get to know local food such as soybean paste, waffles and local sweets ("canome") often made from sticky rice and coconut.

Muang Sing is also known for its kao soi (noodle soup), which literally means "rice cut", as the rice noodles are made by cutting a rice pancake into strips with scissors. You can see kao soi noodles being made in the many Tai Lue and Tai Neua villages. To see rice noodle production you might try Ban Siliheung, a Tai Neua village located on the road to Xiengkok (2Km).

Tai Dam weaving and textile production is mainly performed in Ban Nong Boua and Ban Xieng Yun. Look for the large weaving looms located under or beside houses. Don't be shy to sit down and drink a cup of tea if you are invited into someone's home. Just remember: Ask before you take photos and remove your shoes before entering a house. To show your gratitude and support local crafts you may choose to purchase one of their handmade textiles.

Muang Sing is a town of much historical significance. The museum is an old wood and brick building. This was formerly the home of the Jao Fa Noi (Little Prince), who was actually not a prince but rather an economically powerful figure in the area. The building is now residence of a private citizen. Close to the post office, around the corner from the District administration offices, you can find the old French military fort. The fort is now occupied by the Lao army. Across the street is the former hospital, built in 1919. You can search for the old city wall and moat, which is now partly dry.

The China border is only 10 km from town and makes for a refreshing journey on a bicycle (which can be rented in town). You can't cross the border, however the scenery along the way is beautiful and worth the ride.