Thailand is 193 times larger than Tianmen (China).
Area: 513,120 km2 World Factbook
Population: 67,741,401 (July 2014) World Factbook
Thailand, officially the Kingdom of Thailand, formerly known as Siam, is a country at the centre of the Indochina peninsula in Southeast Asia. Wikipedia
Area: 2,654 km2 calculated
Tianmen is a sub-prefecture-level city in central Hubei Province, People's Republic of China. It is on the west of Wuhan and east of Jingzhou. Formerly known as Jingling, it was renamed to Tianmen in 1726 during the Qing dynasty. Wikipedia