The Mysterious Plain of Jars is situated about 12 kilometers from Ban Phonsavanh, the capital of the province. There are over 300 giant stone jars scattered across the misty plateau. The Jars vary in size from 1 to 3 meters height and up to 2.7 meters in diameters with the heaviest jar weighing 6 tons.

An air of mystery hangs over the Plain of Jars. Local folklore says that, in the 6th century, the warrior king, Khun Jeuam, brought his army from Southern China and defeated the evil chieftain, Chao Angka. The mighty battle was followed by a mighty feast, at which hundreds of gigantic jars of lao-lao rice wine were consumed. Khun Jeuam was, apparently, as bad at tidying up as he was good at throwing parties, for he left behind all of the empty jars, of which nearly three hundred remain, scattered around the flat plains near Phonsavan, including his own six-ton"victory cup".

        The original capital city, Muong Khoun, was almost totally obliterated by US bombing and consequently, the capital was moved to nearby Phonsavanh. Of several Muong Khoun Buddhist temples built between the 16th and 19th century, only ruins remain. Vat Pia Vat, however, survived the bombing and can be visited.

      Approximately 52 kilometers north of the provincial capital of Phonsavanh in Muong Kham District there is a natural mineral hot water spring in a beautiful wooded area.
Some people believe the water from the springs has magical properties to cures skin diseases.

Visitors can enjoy a bath in natural hot spring however they should remain careful as temperatures can reach as high as 60 degrees Celsius.