Question: In which area of Alton Towers is the Thirteen roller coaster located?
Sentence (from "Corkscrew (Alton Towers)"): Waiting times for the ride frequently reached 6–9 hours during the first few months of operation at Alton Towers, and the park would often be forced to close early as it found itself swamped with visitors long before the evening ever came.
Relevant evidence: No