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Holyhead is the largest town in the county of Isle of Anglesey in Wales. It is also a community and a major Irish Sea port, serving Ireland.Despite being the largest town in the county, with a population of 11,431 at the 2011 census, it is neither the county town nor actually on the island of Anglesey. Holyhead is located on Holy Island, which has a population of 13,659 at the 2011 census. It was originally connected to Anglesey via Four Mile Bridge, so called because the bridge was four miles (6 km) from Holyhead on the old turnpike Road. In the mid 19th century, Lord Stanley, a local philanthropist, funded the building of a larger causeway, known locally as "The Cobb", it now carries the A5 and the railway line. The A55 dual carriageway runs parallel to the Cobb on a modern causeway.Prehistoric and Roman historyThe town centre is built around St. Cybi's Church, which is built inside one of Europe's few three-walled Roman forts (the fourth boundary being the sea, which used to come up to the fort). The Romans also built a watchtower on the top of Holyhead Mountain inside Mynydd y Twr, a prehistoric hillfort.Holyhead is in Anglesey. Explore the family-friendly attractions of Holyhead and add them to your vacation plans using our United Kingdom trip itinerary builder app .
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