In archaeology, a broch is an Iron Age drystone hollow-walled structure found in Scotland. Brochs belong to the classification "complex Atlantic roundhouse" devised by Scottish archaeologists in the 1980s.
Broch of Mousa
Remains of Dun Carloway broch, Lewis, Scotland
The remains of Kilphedir broch, Sutherland, are surrounded by massive earthworks.
Midhowe Broch
The British Iron Age is a conventional name used in the archaeology of Great Britain, referring to the prehistoric and protohistoric phases of the Iron Age culture of the main island and the smaller islands, typically excluding prehistoric Ireland, which had an independent Iron Age culture of its own.
The Iron Age is not an archaeological horizon of common artefacts but is rather a locally-diverse cultural phase.
The Battersea Shield, c. 350–50 BC
Maiden Castle, Dorset, is one of the largest hill forts in Europe.
View of the ramparts of the hillfort of Maiden Castle, 450 BC
Iron Age roundhouse, reconstruction