The museum and gallery are housed in a fairytale building, complete with turrets and pointed roofs, that was once a barracks.
The museum explores the city's rich and varied history with galleries exploring local archaeological discoveries, military events and even the football team's FA Cup win. Portsmouth's art and design collections are also showcased here.
The museum holds the world's largest collection of material relating to Sir Arthur Conan Doyle and his creation Sherlock Holmes. A devoted gallery explores the author's early life as a Portsmouth doctor as well as his interest in spiritualism and sport. It also reveals the multitude of way that Sherlock Holmes has been presented on stage and film.