article_snippet: One of the most interesting is Olympus Mons, an enormous dormant volcano that is one of the largest mountains in the solar system, measuring 16 miles (25 kilometres) tall.
article_snippet: One of the most interesting features that can be seen is Olympus Mons, a huge dormant volcano that is one of the largest mountains in the solar system, measuring 16 miles (25 kilometres) tall .
highlights_snippet: On the surface of Mars can be seen features including the huge dormant volcano, Olympus Mons .
  