Student or Learner
Known as the Golden City, Jaisalmer, a former caravan center on the route to the Khyber Pass, rises from a sea of sand, its 30-foot-high walls and medieval sandstone fort sheltering palaces that soar into the sapphire sky.
Q) I don't know the grammatical structure in the underlined part.
Jaisalmer rises from a sea of sand.......... and ???????