A Coruña (La Coruña, Corunna or The Groyne) expanded due to construction between the island where
Tower of Hercules is located and the mainland. The oldest part, known popularly as Cidade Vella or Ciudad Vieja (Old City), Cidade Alta or Ciudad Alta (High City) or the Cidade or Ciudad (City), is built on the site of an ancient Celtic hillfort (
castro), which was inhabited from the 3rd century BC to the 2nd century AD. Its inhabitants were called the
Artabrians, and gave their name to the city in ancient times.