article_snippet: The octagonal tower, which is more than 200ft tall, is on the site of one of the Russian capital's top visitor attractions .
article_snippet: The octagonal tower, which is more than 200ft tall and dates from the late 1600s, is on the site of one of the Russian capital's top visitor attractions.
highlights_snippet: 200ft octagonal tower, which dates from the late 1600s, is on site of one of Moscow's top visitor attractions .
  