Translation of merger in German

We returned to the former capital of the South at dawn and were dropped next to our place. We had a very nice day all in all, although it was very touristy. We felt that we have seen enough of the area.
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.
Originally we planned to stay in Santiago for one day but due to her illness we prolonged our stay for two days. I walked around the city by myself, always staying close to the hotel.