Option 1: Sweden. This option is incorrect because Sweden is not known as the `land of one thousand lakes`. Sweden is known for its beautiful landscapes and numerous archipelagos, but it does not have as many lakes compared to Finland.
Option 2: Greenland. This option is incorrect because Greenland is not known for its lakes. It is primarily covered by ice and glaciers, with limited freshwater bodies.
Option 3: U.S.A. This option is incorrect because the U.S.A is not known as the `land of one thousand lakes`. While the United States does have many lakes, such as the Great Lakes in the Midwest, it does not have as many lakes as Finland.
Option 4: Finland. This option is correct. Finland is known as the `land of one thousand lakes`. It is home to thousands of lakes, including the famous Lake Saimaa and Lake Päijänne. The abundance of lakes in Finland makes it a popular destination for water activities and nature enthusiasts.