In the first episode of season two we see Uncle and Zuko at a spa in a Fire Nation colony in the Earth Kingdom. The architectural style of those houses is influenced by Thai architecture. Compare the shape of the roof, the ornamentation and the stilts.
A traditional Thai house is usually built as a cluster of physically separate rooms arranged around a large central terrace. The terrace is the largest singular part of the home. An area in the middle of the terrace is often left open to allow the growth of a tree through the structure, providing welcome shade. The tree chosen is often flowering or scented.