三里屯是北京外国使领馆的聚集区域，并且正在经历着日新月异的变化。

Built over a diplomatic history, Sanlitun is an unusual place in Beijing.

量值包括外国使领馆的数量，国际性智库的数量，国际组织的数量，以及在辖区内举办的国际性大型会议的数量。

By examining the number of embassies and consulates, major think tanks, international organizations, and political conferences a city hosts.