The San Francisco Bay Area covers an area of 18,040 square kilometers with a population exceeding 7.6 million

New York is located on the southeast coast of New York State, USA, along the Atlantic Ocean.

Boston is the capital and largest city of Massachusetts, USA, and one of the main birthplaces of American history and culture.

Toronto has an area of approximately 641 square kilometers and a population of about 5.928 million in 2016. It is the largest city in Canada, the national economic center, and one of the world-renowned financial centers.

Sydney is located on the east coast of Australia, covering an area of approximately 12,368 square kilometres and with a population of 5.73 million.

Turin is the third largest city in Italy, with a metropolitan area of 1,977 square kilometres and a population of around 2.2 million.

Vienna is the capital and the largest city of the Republic of Austria. It is the political, economic and cultural centre of Austria and is situated in the east of the country, bordering the Czech Republic, Slovakia and Hungary.

Moscow is the capital and the largest city of the Russian Federation and the political, economic, cultural, financial and transport centre of Russia. Moscow is located in the middle of the Russian plain, on the banks of the Moscow River, with an area of about 2,560 square kilometres and a resident population of about 12.3 million.

Brussels is the capital and largest city of Belgium and the seat of the main administrative body of the European Union. With an area of approximately 162 square kilometres and a population of approximately 1.17 million, the Brussels region is known as the 'heart' of Europe and the 'ten largest cities in Europe'.

Hanover is the capital of the German state of Lower Saxony and is a hub of converging land and water transport, both at the crossroads of Germany's main north-south and east-west railway lines and on the Central German Canal.