Wanderlust World Wanderlust World HMP Berwyn, located in Wrexham, Wales, holds the distinction of being the most expensive prison ever constructed in the United Kingdom. With an estimated price tag of £250 million, this massive facility opened its doors in 2017.
Designed to accommodate 2,106 inmates, HMP Berwyn is also the largest prison in the UK by capacity. The complex represents a significant investment in the country's penal infrastructure, focusing on rehabilitation and modern correctional approaches rather than purely punitive measures.