Nairobi is the capital and the largest city of Kenya. The name comes from the Maasai phrase Enkare Nairobi, which translates to "cool water", a reference to the Nairobi River which flows through the city. The city proper had a population of 4,397,073 in the 2019 census, while the metropolitan area has a population of 9,354,580. The city is popularly referred to as the Green City in the Sun.

Oberursel (Taunus) is a city in Germany and part of the Frankfurt Rhein-Main urban area. It is located to the north west of Frankfurt, in the Hochtaunuskreis county. It is the 14th largest town in Hesse. In 2011, the town hosted the 51st Hessentag state festival.The maximum distance from the northern town border to the southern border is 7.2 km (4 mi) the maximum distance from east to west is 13.0 km (8 mi). To the north Oberursel borders with Schmitten, to the east with Bad Homburg vor der Höhe, to the south-east with Frankfurt, to the southwest with Steinbach and to the west with Kronberg.Besides the town centre (including Bommersheim), Oberursel is divided into the districts Oberstedten (population 6,118), Stierstadt (5,541) and Weißkirchen (Oberursel) (5,151). Bommersheim was annexed before the municipal reform of 1972 and therefore is not an independent district.

Fuzhou, the capital of southeast province of Fujian, also referred to as Rongcheng (city of Banyang trees), is an important southeast coastal city faces East China Sea as well as a nearest capital city of the country faces the island of Taiwan. Located in the downstream of Min River, Fuzhou is adjacent to Ningde City, Nanping City, Sanming City and Putian City. The city is heavily populated by Han people, who live harmony with over 20 ethnic minorities of Manchu, Miao, Hui, and so on.Just as its Chinese name Fu (福) implies, it is a city full of good fortunes (Fu).Fuzhou is one of the first open coastal cities in China. Mawei Fuzhou, the cradle of the modern Chinese Navy, has cultivated Chinese shipping culture. It is both a historic and a cultural city with over two-thousand-year of history.Such historical sites as Sanfang Qixiang, Fujian Tulou and Mount Wuyi combining natural scenery and tea culture are waiting for you to explore.

Copenhagen is the capital and most populous city of Denmark. As of 1 January 2020, the city had a population of 794,128 with 632,340 in Copenhagen Municipality, 104,305 in Frederiksberg Municipality, 42,989 in Tårnby Municipality, and 14,494 in Dragør Municipality. It forms the core of the wider urban area of Copenhagen (population 1,330,993) and the Copenhagen metropolitan area (population 2,057,142). Copenhagen is situated on the eastern coast of the island of Zealand; another portion of the city is located on Amager, and it is separate from Malmö, Sweden, by the strait of Øresund. The Øresund Bridge connects the two cities by rail and road.