Stonehenge is a massive stone monument located on a chalky plain north of the modern-day city of Salisbury, England.

The Tower of London is a historic castle located on the north bank of the River Thames in central London.

Hadrian's Wall, also known as the Roman Wall, is a former defensive fortification of the Roman province of Britannia.

Sutton Hoo is a significant archaeological site that has provided some of the richest and most important Anglo-Saxon findings.

Edinburgh Castle is a historic fortress which dominates the skyline of the city of Edinburgh from its position atop Castle Rock.

Londinium, a historical settlement established on the current site of London, served as a major commercial centre during the Roman Empire.

The Antonine Wall, known to the Romans as Vallum Antonini, was a turf fortification on stone foundations, built by the Romans across what is now the Central Belt of Scotland.

Skara Brae is a stone-built Neolithic settlement located on the Bay of Skaill on the west coast of Mainland, Orkney, Scotland.

Caernarfon Castle is a medieval fortress located in Caernarfon, Gwynedd, north-west Wales.

Dover Castle is a large and well-preserved fortress in the southeastern English county of Kent.