Bangkok, Thailand [huanqiu.com]

3. Bangkok, the capital the Thailand, is located at the region of the Chao Phraya Delta. It is the political, economic, cultural and educational center of Thailand. Bangkok is low-laying and always threatened by floods during monsoon season. Besides, soft geological formations, over-urbanization and damaging exploitation of groundwater all result in fast ground settlement of Bangkok. It is estimated that most of the Bangkok city would sink underneath the sea level till the end of this century.