The largest wooden temple in Thailand. See pictures by thaismile.jp And pictures by tomcockrem.com. Read Thailand for Visitors. The viharn was constructed in the 13th century and rebuilt in 1802. The Chedi was enlarged in 1449 and 1496. It's famous for its murals from the 16th century, its architecture and its colourful interiors. Inside you find the Buddha Image Phra Kaew Don Tao, said to be carved from the same jade block as the Emerald Buddha. The name of the wat - The Great Relic Monastery of Lampang - comes from the belief that the Buddha himself once visited here and donated a tuft of his hair, now enshrined in the chedi. More pictures by Teleek