Translation of replace in Spanish

Thank you for correcting my German, I always get confused with the words that put the verb at the end. Like the zu and the ab and the an... All new to me. I truly wish to continue our friendship.
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.
The next morning we got up a little later than usual. After leaving our room we recognized that this town and region was stunning. Desert and high volcanoes all around us. The place was superb.