Labels:book | door | envelope | extrados | plant | reckoner | sky | windowpane OCR: The altitude Is so high in usco that we have been asked to take easy for the day to acclimatize, which isn when so much be seen in the area! We ve been walking around this historic town, awestruck the construction the massive stone walls One stone has twe ve sides which all per fectly into the stones it! Cusco was made from the gigantic stones nearby Sacsayhuaman, wnere the walls were once 30 feet high comprised stones weighing more than 350 tons. hey appear to be circular struc ture which our guide explained was water reservoir once used for the royal families during times war We think an awfully elaborate Construction have served such minimal purpose! towny twelve where usec servec