Yeouido is the center of politics in South Korea. The western half of the island dominated by political organisations and their respective buildings. Most prominently, the National Assembly Building is located to the far west of the island. Construction of the building commenced in 1969 and was completed in 1975 and sits atop the site of the former Yeouido airport. Prior to the opening of the National Assembly Building the seat of government was located at the General Government Building which was situated within the grounds of Gyeungbok Palace.