根据下列短文内容，在短文后的空格处填上一个恰当的词，使短文完整、通顺。

     If you are tired of high buildings and wide streets, then come to Beijing's hutongs (北京胡同).

     Beijing is the home to thousands of hutongs. The word "hutong"   1   from the Mongolian language

about 700 years ago. They were built in the Ming and Qing dynasties (朝代). But you can still find some

built in the Yuan dynasty. They are very   2   as a window to Beijing folk life in the past. Some people

even   3   hutongs as the "encyclopedia (百科全书) of Beijing" or the "museum of history and culture (文

化) of Beijing".

     Every year, a lot of foreign   4   come to Beijing. Many of them like to visit hutongs. From it they know

Beijing and the   5   of the local (当地的) people in the past better. They are very   6   in the wonderful

design (设计) of hutongs. But most of the hutongs were pulled   7  , only a few   8  . For many people, it

is a very sad thing. We should do our   9   to protect and   10   the hutongs, because we can learn a lot

from them about history and people in ancient China.