I really like the mosaic artwork on the walls of buildings at Wat Xieng Thong in Luang Prabang, Laos.
Luang Prabang is full of interesting temples and is a great place to walk around. The old city has been designated a World Heritage Site by the UN and I highly enjoyed staying in Luang Prabang.
Buddha statues in front of a mosaic wall inside a Wat Xieng Thong temple building.
The site includes some temples with mosaics on the outside and some without. In addition, at least one, but I think more, have mosaics on the inside walls.
You can click on all the images for a larger photo. This tree mosaic I included a significantly larger photo so you can zoom in a bit and see some detail.
The city has plenty of good food around also. See the Curious Cat Luang Prabang tourist map.