 The <unk> Pagoda , or Six <unk> Pagoda , is another example of Song @-@ era pagoda architecture . It is located in the Southern Song capital of Hangzhou , in Zhejiang Province , at the foot of <unk> Hill facing the <unk> River . Although the original was destroyed in 1121 , the current tower was erected in <unk> and fully restored by 1165 . It stands 59 @.@ 89 m ( 196 @.@ 5 ft ) tall , and was constructed from a red brick frame with 13 stages of wooden eaves . Because of its size , the pagoda served as a permanent lighthouse to aid sailors at night ( as described in Hangzhou Fu <unk> ) . 
