Naha is the capital of Okinawa Prefecture, the tropical island group south of mainland Japan. The modern city was officially founded on May 20, 1921. Before that Naha had been for centuries one of the most important and populous sites in Okinawa. In the medieval and early modern periods, it was the commercial center of the Ryūkyū Kingdom.

Hong Kong ("Fragrant Harbour"), officially known as Hong Kong Special Administrative Region of the People's Republic of China, is an autonomous territory on the southern coast of China at the Pearl River Estuary and the South China Sea. It is known for its skyline and deep natural harbour. It is a world-renowned shopping paradise, known for its tourist-friendly atmosphere and numerous options. The huge shopping malls of Central, Admiralty and the street fashion factory in Causeway Bay are reasons for many travelers to make their Hong Kong trips. Home to around 7.2 million Hongkongers and other nationalities, Hong Kong is one of the world's most densely populated regions!

Kagoshima, a seaside city on Japan's Kyushu Island, is the capital of Kagoshima Prefecture. It has been nicknamed the "Naples of the Eastern world" for its bay location (Aira Caldera), hot climate and impressive stratovolcano, Sakurajima. It is a historical city watched over by the looming bulk of Sakurajima (桜島), an active volcano that regularly dumps ash over the city and erupts a bit every now and then to remind people it's still there. The home of near-mythical samurai hero Saigo Takamori, it's full of sites related to the Satsuma Rebellion.

Seoul, officially the Seoul Special City, is the capital and largest city of South Korea. A megacity with a population of over 10 million, it is one of the largest cities in the world. The Seoul National Capital Area is the world's second largest metropolitan area with over 24.5 million inhabitants, which includes the Incheon metropolis and most of Gyeonggi province. Almost half of South Korea's population live in the Seoul National Capital Area, and nearly a quarter in Seoul itself, making it the country's foremost economic, political, and cultural center.

Beijing is a metropolis in Northern China, and the capital of the People's Republic of China. It is one of the most populous cities in the world. Governed as a municipality under direct administration of the central government, Beijing borders Hebei Province to the north, west, south, and for a small section in the east, and Tianjing Municipality to the southeast. As the last of the Four Great Ancient Capitals of China, Beijing has been the political center of the country for much of the past eight centuries. Beijing has a glorious past, but is by no means stuck in the past. Standing side-by-side with old Beijing's crimson palace complexes are the city's modern buildings, the super-modern Olympic Village, with the Bird’s Nest Stadium and Water Cube; the dazzling shopping malls in Wangfujing Street and the colorful entertainment center of Houhai. The city is renowned for its opulent palaces, temples, parks, gardens, tombs, walls and gates, and its art treasures and universities have made it a center of culture and art in China! 

Yokohama is the second largest city in Japan by population, and most populous municipality of Japan. It is the capital city of Kanagawa Prefecture. It lies on Tokyo Bay, south of Tokyo, in the Kantō region of the main island of Honshu. It is a major commercial hub of the Greater Tokyo Area. It’s also known for Sankei-en Garden, a botanical park containing preserved Japanese residences from different eras, and the seaside Minato Mirai district, site of the 296m Landmark Tower.   Yokohama's population of 3.7 million makes it Japan's largest city after the Special Wards of Tokyo. Yokohama developed rapidly as Japan's prominent port city following the end of Japan's relative isolation in the mid-19th century, and is today one of its major ports along with Kobe, Osaka, Nagoya, Hakata, Tokyo, and Chiba.

Nagasaki Prefecture (長崎県 Nagasaki-ken) is a prefecture of Japan located on the island of Kyushu. The prefectural capital is Nagasaki City. Nagasaki has become synonymous with the atomic bomb that levelled the city in August 1945, but this fascinating city offers wonderful temples, great food, top museums and a fascinating, if at times tragic, history.

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!