Helsinki is the capital of Finland, which was once part of Sweden. It is also located on a peninsula and several islands in the Baltic Sea.
Copenhagen is the capital of Denmark, which is also a Scandinavian country. It is situated on two islands, Zealand and Amager, and connected by bridges to the mainland.
Ottawa is the capital of Canada, which is a former colony of Sweden. It is located on the banks of the Ottawa River, which forms the border between Ontario and Quebec. The river also flows through several islands within the city.
Singapore is the capital and the only city of the island nation of Singapore. It is also a global financial and cultural hub, with a diverse and multicultural population.
Tokyo is the capital and largest city of Japan, which is an island nation in East Asia. It is also one of the most populous and influential cities in the world, with a rich history and culture.