What are Two unique types of structures used in the tropical monsoon regions Asia?

1. Stilt houses: These are houses that are built on stilts, or raised platforms, above the ground. This design helps to protect the houses from flooding, which is common in tropical monsoon regions. Stilt houses also allow for air to circulate beneath the house, which helps to keep the interior cool.

2. Thatched roofs: Thatched roofs are made from natural materials, such as grass, palm leaves, or bamboo. These materials are lightweight and insulating, which helps to keep the interior of the house cool. Thatched roofs are also relatively easy to repair, which is important in areas where there are frequent storms.