is Finland's capital and the most populated city in the Nordic countries. It is noted for its stunning architecture, thriving cultural scene, and friendly people and is located on a peninsula in the Gulf of Finland. Helsinki is a young city, having been founded in 1550 by King Gustav I Vasa of Sweden. However, it has a long history and civilization that dates back to the Stone Age. The Temppeliaukio Church, the Seurasaari Open-Air Museum, and the Suomenlinna Sea Fortress are among the most famous tourist sites in Helsinki. There are also some museums, theatres, and concert halls in the city. Helsinki is a popular business and leisure vacation destination. It is a well-connected city with contemporary infrastructure that provides a wide range of activities and attractions for visitors of all ages. Jakarta is a cultural melting pot, with residents hailing from throughout Indonesia. The architecture of the city shows its rich history, with Dutch colonial structures, Chinese shop houses, and traditional Javanese residences all coexisting. Jakarta is also a major commercial and industrial city. The Indonesia Stock Exchange and the headquarters of several prominent Indonesian corporations are located in the city. Jakarta is also a major transportation hub, with Soekarno-Hatta International Airport being Southeast Asia's busiest airport. Despite its rapid expansion and economic development, Jakarta has a variety of issues, including traffic congestion, pollution, and a lack of public transportation.