Private Tour: 'Doctor Who' Cardiff TV Locations From London by Black Cab. Come face-to-face with daleks, extraterrestrials and sontarans on this full-day tour of Cardiff’s Doctor Who filming sites. Depart from London in an iconic black cab, and then travel to the Welsh capital in search of locations featured in the popular Sci-Fi television series. Hear stories about the Doctor, Rose, Amy and Rory from your private driver-guide, and spots featured in the show. You’ll also visit the immersive 'Doctor Who Experience' exhibition (own expense), where you’ll have the opportunity to walk through the TARDIS. Book and Save 10% Off Private Tour: 'Doctor Who' Cardiff TV Locations From London by Black Cab.