Heroes’ Hill - Knockdhu, County Antrim

Toga Town - Caerwent, South Wales

Caerwent is the best-preserved Roman town in Britain. Laid out on a grid pattern, it has 20 blocks within its walls, which still stand at heights of up to five metres in places. Previous excavations have uncovered roads, temples, shops, baths, houses and villas, as well as the forum and basilica, the town's political centre.