Waterbury (nicknamed "The Brass City") ( ) is a city in the U.S. state of Connecticut on the Naugatuck River, 33 miles (45 minutes) southwest of Hartford and 77 miles (90 minutes) northeast of New York City.
 Waterbury is in New Haven County, Connecticut.
 As of the 2010 census, Waterbury had a population of 110,366, making it the 10th largest city in the New York Metropolitan Area, 9th largest city in New England and the 5th largest city in Connecticut.
Tennessee ( ; Cherokee: ᏔᎾᏏ , "Tanasi " ) is a state located in the southeastern region of the United States.
 Tennessee is the 36th largest and the 16th most populous of the 50 United States.
 Tennessee is bordered by Kentucky and Virginia to the north, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, and Arkansas and Missouri to the west.
 The Appalachian Mountains dominate the eastern part of the state, and the Mississippi River forms the state's western border.
 Nashville is the state's capital and largest city, with a population of 660,388.
 Tennessee's second largest city is Memphis, which has a population of 652,717.
Hyoja-dong is a "dong", neighbourhood of Jongno-gu in Seoul, South Korea.
Indianapolis (pronounced ), is the capital and largest city of the U.S. state of Indiana and the seat of Marion County.
 It is in the East North Central region of the Midwestern United States.
 With an estimated population of 855,164 in 2016, Indianapolis is the third most populous city in the Midwest and 15th most populous in the U.S.
 The city is the economic and cultural center of the Indianapolis metropolitan area, home to 2 million people, the 34th most populous metropolitan statistical area in the U.S. Its combined statistical area ranks 27th, with 2.38 million inhabitants.
 Indianapolis covers 368 sqmi , making it the 16th largest city by land area in the U.S.
Poland is a country in Central Europe, situated between the Baltic Sea in the north and two mountain ranges (the Sudetes and Carpathian Mountains) in the south.
 Bordered by Germany to the west; the Czech Republic and Slovakia to the south; Ukraine and Belarus to the east; and the Baltic Sea, Kaliningrad Oblast (a Russian exclave) and Lithuania to the north.
 The total area of Poland is 312679 km2 , making it the 69th largest country in the world and the 9th largest in Europe.
 With a population of over 38.5 million people, Poland is the 34th most populous country in the world, the 8th most populous country in Europe and the sixth most populous member of the European Union.
 Poland is a unitary state divided into 16 administrative subdivisions, and its capital and largest city is Warsaw.
 Other metropolises include Kraków, Wrocław, Poznań, Gdańsk and Szczecin.
Seoul ( ; 서울; ] ), officially the Seoul Special Metropolitan City – is the capital and largest metropolis of the Republic of Korea (commonly known as South Korea).
 Seoul is the world's 16th largest city, and forms the heart of the Seoul Capital Area, which includes the surrounding Incheon metropolis and Gyeonggi province.
 The Seoul Capital Area houses about half of the country's population of 51.44 million people with 678,102 international residents.
Bangalore/Bengaluru is the capital and largest city in the Indian state of Karnataka.
 With a population of over 15 million (as of January 2016), Bengaluru is the third largest city in India and 27th largest city in the world.
 Bengaluru is one of the most ethnically diverse cities in the country, with over 62% of the city's population comprising migrants from other parts of India.
 Historically a multicultural city, Bengaluru has experienced a dramatic social and cultural change with the advent of the liberalization and expansion of the information technology and business process outsourcing industries in India.
 IT companies in Bengaluru employ over 35% of India's pool of 1 million IT professionals.
Bhopal ( ; ] ) is the capital of the Indian state of Madhya Pradesh and the administrative headquarters of Bhopal district and Bhopal division.
 The city was the capital of the former Bhopal State.
 Bhopal is known as the "City of Lakes" for its various natural as well as artificial lakes and is also one of the greenest cities in India.
 It is the 17th largest city in the country and 131st<ref name="Estimated Population of Bhopal urban area in 2009, Bhopal 131th largest city in world in 2009/"> </ref> in the world.
Benton is a city in and the county seat of Saline County, Arkansas, United States and a suburb of Little Rock.
 It was established in 1837.
 According to a 2006 Special Census conducted at the request of the city government, the population of the city is 27,717, ranking it as the state's 16th largest city, behind Texarkana.
 However, in the 2010 census, the city population increased to 30,681, making it the 12th largest city in the state of Arkansas.
 In 2014, the population increased again to 33,625 It is part of the Little Rock–North Little Rock–Conway Metropolitan Statistical Area.
 The city of Benton, first settled in 1833 and named after Missouri Senator Thomas Hart Benton, was formally chartered in 1836 when Arkansas became a state.
Teresina is the capital and most populous municipality in the Brazilian state of Piauí.
 Being located in North-central Piauí 366 km from the coast, it is the only capital in the Brazilian Northeast that is not located on the shores of the Atlantic Ocean.
 With 814,439 inhabitants, Teresina is the 19th largest city in Brazil, and the 15th largest state capital in the country.
 Together with Timon in the nearby state of Maranhão, it forms a conurbation with a population of about 953,172 inhabitants; the entire metropolitan region of Teresina has over 1,135,920 inhabitants.
 The only natural barrier that separates Teresina from Timon is the Parnaíba river, one of the largest in the Northeast.

Question: Which country has the world's 16th largest city as its capital, a city which has Hyoja-dong as a "dong"?
Answer: South Korea