Kymenlaakso in the context of "Uusimaa"

South Karelia (or Southern Karelia, Finnish: Etelä-Karjala; Swedish: Södra Karelen; Karelian: Suvi-Karjala) is a region of Finland. It borders the regions of Kymenlaakso, South Savo and North Karelia, as well as Russia (Republic of Karelia and Leningrad Oblast).

South Savo (or Southern Savonia; Finnish: Etelä-Savo; Swedish: Södra Savolax) is a region in the south-east of Finland. It borders the regions of North Savo, North Karelia, South Karelia, Kymenlaakso, Päijät-Häme, and Central Finland. The total area of South Savo is 18,768.33 km (7,246.5 sq mi), with a population of 153,738 (2011). South Savo is located in the heart of the Finnish lake district, and contains Lake Saimaa, the largest lake in Finland. The three major towns in the region are Mikkeli, Savonlinna and Pieksämäki.

Leningrad Oblast (Russian: Ленинградская область, romanized: Leningradskaya oblastʹ, IPA: [lʲɪnʲɪnˈgratskəjə ˈobləsʲtʲ]; Veps: Leningradan agj; Finnish: Leningradin alue) is a federal subject of Russia (an oblast). The oblast has an area of 84,500 square kilometres (32,600 sq mi) and a population of 2,000,997 (2021 Census); up from 1,716,868 recorded in the 2010 Census. Leningrad Oblast is highly industrialized. Its administrative center and largest city is Gatchina.

The oblast was established on 1 August 1927, although it was not until 1946 that the oblast's borders had been mostly settled in their present position. The oblast was named after the city of Leningrad. In 1991, the city restored its original name, Saint Petersburg, but the oblast retains the name of Leningrad. It overlaps the historical region of Ingria, and is bordered by Finland (Kymenlaakso and South Karelia) in the northwest and Estonia (Ida-Viru County) in the west, as well as five federal subjects of Russia: the Republic of Karelia in the northeast, Vologda Oblast in the east, Novgorod Oblast in the south, Pskov Oblast in the southwest, and the federal city of Saint Petersburg in the west.

An observation tower is a tower used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance observations. Observation towers are usually at least 20 metres (66 ft) tall and are made from stone, iron, and wood. Many modern towers are also used as TV towers, restaurants, or churches. The towers first appeared in the ancient world, as long ago as the Babylonian Empire.

Observation towers that are used as guard posts or observation posts over an extended period to overlook an area are commonly called watchtowers instead.

Karelia (/kəˈriːliə, kəˈriːljə/; Karelian and Finnish: Karjala [ˈkɑrjɑlɑ]; Livvi: Karjal; Russian: Каре́лия, romanized: Kareliya [kɐˈrʲelʲɪjə], historically Коре́ла, Korela [kɐˈrʲelʲə]; Swedish: Karelen [kɑˈreːlen]) is an area in Northern Europe of historical significance for Russia (including the Soviet era), Finland, and Sweden. It is divided between northwestern Russia (the federal subjects of the Republic of Karelia and Leningrad Oblast) and Finland (the regions of South Karelia, North Karelia, and the eastern portion of Kymenlaakso).

Karelia (Finnish: Karjala: Swedish: Karelen) is a historical province of Finland, consisting of the modern-day Finnish regions of South Karelia and North Karelia plus the historical regions of Ladoga Karelia and the Karelian Isthmus, which are now in Russia. Historical Karelia also extends to the regions of Kymenlaakso (east of the River Kymi), North Savo (Kaavi, Rautavaara and Säyneinen) and South Savo (Mäntyharju).

Karelia may also refer to the region as a whole, including the portion of Karelia within Russia. The term "Finnish Karelia" refers specifically to the historical Finnish province, while East Karelia or "Russian Karelia" refers to the portion of Karelia within Russia. Finland ceded a portion of Finnish Karelia to the Soviet Union after the Winter War of 1939–40. More than 400,000 evacuees from the ceded territories re-settled in various parts of Finland. Finnish Karelians include the present-day inhabitants of South Karelia and North Karelia, as well as the still-surviving evacuees from the ceded territories.

Vyborgsky District (Russian: Вы́боргский райо́н, romanized: Výborgskiy raión, IPA: [ˈvɨbərkskʲɪj rɐˈjɵn]) is an administrative and municipal district (raion), one of the seventeen in Leningrad Oblast, Russia. It is located in the northwest of the oblast on the Karelian Isthmus and borders with Priozersky District in the northeast, Vsevolozhsky District in the east, Kurortny District of the federal city of St. Petersburg in the south, Kymenlaakso and South Karelia regions of Finland in the northwest, and Lakhdenpokhsky District of the Republic of Karelia in the north. From the southwest, the district is limited by the Gulf of Finland. The area of the district is 7,475.472 square kilometers (2,886.296 sq mi). Its administrative center is the town of Vyborg. Population (excluding the administrative center): 120,446 (2010 census); 113,748 (2002 Census); 108,571 (1989 Soviet census).

Central Ostrobothnia (Finnish: Keski-Pohjanmaa; Swedish: Mellersta Österbotten) is a region in Finland. Central Ostrobothnia borders the Bothnian Bay and the regions of Ostrobothnia, North Ostrobothnia, Central Finland and South Ostrobothnia. The regional bird of Central Ostrobothnia is the Eurasian skylark, the regional stone is Gneiss, the regional lake is Lake Lestijärvi, the regional fish is European whitefish. The capital and largest city of the region is Kokkola.

Central Ostrobothnia has an area of 6,462.93 km, of which 5,019.98 km² is land area. Central Ostrobothnia, including the sea areas, is the smallest province in mainland Finland in terms of population and total area, and the second smallest province in Finland after Åland. However, if you count the land area alone, Kymenlaakso is smaller than Central Ostrobothnia.