Ravenscala

 was a planet inhabited by giants. The Eleventh Doctor told companion Amy Pond that the people are 600 feet tall and you have to talk to them from air balloons. The Ravenscala tourist information centre was made from a hat.

The Doctor was attempting to bring Amy and Rory to the planet when they landed in what appeared to be a 1980s hotel. (TV: The God Complex)

Behind the scenes
The spelling of this planet's name is based off the episode's home video closed captioning, as there are no other onscreen clues.