Verne Citadel

Verne Citadel is a military fortress built from local limestone on a hilltop overlooking Portland Harbour. The site contains numerous buildings, defensive walls, and prison structures that were added and modified over the years to serve different purposes.

Construction began in 1857 and finished in 1869 as a response to security concerns during the Victorian era. After its military purpose declined, it was converted into a prison, which fundamentally changed its use and function.

The site reflects how British military design adapted over time, blending defensive structures with spaces that later served a correctional purpose. Walking through it today, you can see how these two functions shaped the layout and buildings.

Access depends on current visiting guidelines, as parts of the complex remain under prison service management. Check ahead about access rules and be prepared for any restrictions on which areas you can explore.

The site contains an extensive network of underground passages that originally served military purposes. These tunnels remain a fascinating architectural feature that many visitors overlook when exploring the grounds.