Tokyo - officially Tokyo Metropolis, is one of the 47 prefectures of Japan. It is located on the eastern side of the main island Honshū and includes the Izu Islands and Ogasawara Islands. It is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of Japan. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family. The city is famed for its vibrant food scene, and its Shibuya and Harajuku districts are the heart of its trendy teen fashion scene.

Kumamoto is the capital city of Kumamoto Prefecture on the island of Kyushu, Japan. Greater Kumamoto (熊本都市圏) had a population of 1,460,000, as of the 2000 census. As of 2010, Kumamoto Metropolitan Employment Area has a GDP of US$39.8 billion. It is not considered part of the Fukuoka–Kitakyushu metropolitan area, despite their shared border. The city was designated on April 1, 2012 by government ordinance.

Tianjin is a metropolis in North China and one of the five national central cities. It is governed as a direct-controlled municipality, one of four such designations, and is thus under direct administration of the central government. The city borders Hebei Province and Beijing Municipality, bounded to the east by the Bohai Gulf portion of the Yellow Sea. As a dual-core city, Tianjin is divided into the old city and the Binhai New Area. As a treaty port since 1860, Tianjin has been a major seaport and gateway to the nation's capital.

Shanghai is the cool, confident face of modern China, and its energy is infectious. Located in the Yangtze River Delta in East China, Shanghai sits on the south edge of the mouth of the Yangtze in the middle portion of the Chinese coast. Shanghai is a popular tourist destination renowned for its historical landmarks such as The Bund, City God Temple and Yu Garden as well as the extensive Lujiazui skyline, many skyscrapers, and major museums including the Shanghai Museum and the China Art Museum. It has been described as the "showpiece" of the booming economy of mainland China. Go to its heart, The Bund, to watch ships on the river and marvel at the huge variety of architectural styles on display, or watch the crowds go by in People's Square!  

Switzerland, officially the Swiss Confederation, is a federal republic in Europe. While still named the Swiss Confederation for historical reasons, modern Switzerland is a federal directorial republic consisting of 26 cantons, with Bern as the seat of the federal authorities, called '"federal city". Situated in Western-Central Europe, Switzerland is also a landlocked country geographically divided between the Alps, the Swiss Plateau and the Jura. Spanning the intersection of Germanic and Romance Europe, Switzerland comprises four main linguistic and cultural regions: German, French, Italian and Romansh. Although the majority of the population are German speaking, Swiss national identity is rooted in a common historical background, shared values such as federalism and direct democracy, and Alpine symbolism. One of the most developed countries in the world, Switzerland ranks at or near the top globally in several metrics of national performance, including government transparency, civil liberties, quality of life, economic competitiveness, and human development. Its cities contain medieval quarters, with landmarks like capital Bern’s Zytglogge clock tower and Lucerne’s wooden chapel bridge. The country is also known for its ski resorts and hiking trails.

Incheon officially the Incheon Metropolitan City, is South Korea's third or fourth largest metropolis, after Seoul and Busan, and tied with Daegu. As the largest seaport on the west coast and home to the country's largest airport, Incheon International Airport, Incheon is South Korea's most important transport hub. In the 21st century, Incheon has transformed into a global business hub centered around the high-tech and futuristic Songdo International City, which is home to South Korea's tallest building, the 305m supertall Northeast Asia Trade Tower.