Shepton Mallet Prison is a World Class tourism experience that inspires people, educating, engaging and immersing visitors through a journey behind bars.Our mission is to preserve, protect and promote the history and heritage of Shepton Mallet Prison, by shining a light on prison life from the Jacobean era to the modern day. Visitors are given a unique and immersive prison experience combined with first class customer service. Shepton Mallet Prison was built in 1625 and closed in 2013, making it the countries oldest prison. with over 400 years of history behind its high walls, Shepton Mallet Prison is a must-see heritage site.