Translation of renew in Spanish

Is there any specific reason you are learning Spanish? How is going? What sort of level are you? I live in London, England but I am originally from Mexico. when would you like to start practicing your Spanish?
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.
At noon we continued to the Altiplano to visit some lakes and volcanoes. At 4000 meter above see level it became suddenly extremely cold and our heads started to spin. Altitude sickness?