Barcelona (planet)

Barcelona was a planet mentioned by the Ninth and Tenth Doctors, shortly before and after the Ninth Doctor's regeneration. Supposedly its inhabitants included dogs with no noses. As a result, the joke about dogs with no noses was always funny on this planet according to the Ninth Doctor. (TV: The Parting of the Ways, Children in Need Special)

Having told Rose Tyler that she would've "love[d] it" prior to his regeneration, the newly regenerated Tenth Doctor set a course to Barcelona at 6PM of a Tuesday in October 5006. However, he cancelled this trip to take Rose back home to the Powell Estate on Christmas Eve 2006. (TV: Children in Need Special)

After defeating Es'Cartrss of the Tactire, the Tenth Doctor decided he would venture over to planet Barcelona. (COMIC: The Forgotten)

References in invalid sources
While Christel Dee was describing where she planned to go on a summer holiday, she specified that she was going to Barcelona. She then clarified that she was referring to 'the city Barcelona - Spanish Barcelona - not the planet Barcelona', and that the planet had 'too many no-nosed dogs'. (NOTVALID: Doctor Who Minecraft)