Lembah Buiang, lying between Gunung Jerai in the north and Sungai Muda in the south, is regarded as Malaysia's richest archaeological area.

The Bujang Valley Archaeological Museum in Pengkalan Bujang, Merbok houses numerous artificial stone caskets, gem stones, beads, etc. Fifty (50) candis or temples were found along Sungai Bujang and to date eight (8) of them have been restored to their original form using the same original materials, visitors interested in history and archaeology should not miss out on this area in Kedah.