Question: The elevator located at the Casco Viejo station in the Bilbao Metro is also used for what?
Sentence: At Casco Viejo station in the Bilbao Metro, the elevator that provides access to the station from a hilltop neighborhood doubles as city transportation: the station's ticket barriers are set up in such a way that passengers can pay to reach the elevator from the entrance in the lower city, or vice versa.
Answer in sentence: yes