The most impressive Iron Age structures of Orkney are the ruins of later round towers called "brochs" and their associated settlements such as the Broch of Burroughston and Broch of Gurness.
As estruturas máis impresionantes da Idade de Ferro das Orcadas son as ruínas das últimas torres redondas chamadas "Brochs" e os seus asentamentos asociados, tales como o Broch de Burroughston e o Broch de Gurness.