Doctor who fans will feel at home in Cardiff. Many episodes are filmed here and the local BBC soundstages house the TARDIS set. On the bay, the Doctor Who Experience grants you a look into the filming process and many of the props and costumes used on the show. Depending on the day, you may just be able to upgrade your ticket into a walking tour and a visit to the TARDIS set. The walking tour, of which others are offered through third-parties, shows you the city and numerous filming locations
Even without Doctor Who, Cardiff is a beautiful bay city with a rich Welsh history. Within the city limits is Cardiff Castle, the original center of the city. The castle was in use until 1947 but is now open to the public and even used for concerts.