Translation of retract in Spanish

Sorry, I don't know but I have asked some friends for help. Hope they will answer soon! Where did you find this sentence? He's originally from Scotland, so I hope you can understand his accent.
It must have taken them years and ten's of thousands of workers to accomplish the tasks of constructing such spectacular compounds. We took many pictures and walked back to the taxi.
This moment by itself made the flight and its delay worth. Although we regarded Arequipa as a hub on the way to Chile, it turned out to be a very charming city.