Boston, USA -- located in the northeast of the United States, it is the capital of Massachusetts, with an area of 125 square kilometers and a population of 650,000. It is close to the vast Atlantic ocean, is a good port city. There are more than a dozen towns around it, such as Harvard University, Massachusetts institute of technology is located in Cambridge, a combination of these towns were known as the greater Boston area.

Singapore, also known as the Lion City, is a multicultural country of immigrants,consisting of 63 islands including Singapore Island, one of the most cosmopolitan countries in the world, and is known as the “Garden City”.

Zurich, located in the north-central part of the Swiss Confederation, is the largest city and the most important industrial and commercial city in Switzerland, the capital of the canton of Zurich, the political, economic, cultural and transportation center of the country, and the richest city in Europe.

Eindhoven is a very innovative city, the fifth largest industrial city of the Netherlands, and is also one of the four major high-tech cluster regions in Europe.

Paris, the capital and largest city of France, is also the political, economic, cultural and commercial center of France. It is one of the five international metropolises in the world, and was rated as Alpha+ world first-tier city by GaWC.