阅读下面短文,在空白处填入 1 个适当的单词或括号内单词的正确形式。 Known as the "Vegas of China", Macao , while filled with luxury and world-cla ss entertainment, also 21 ( offer)many landmarks that define the city's unique and fascinating history. The first episode of "Landmarks of Macao " takes you to arguably Macao's most famous landmark — the Ruins of St. Paul's , 22 both the city's Chinese tradition and the Portuguese culture have been greatly preserved. No trip to Macao could be complete 23 visiting the Ruins of St. Paul's. The Ruins of St. Paul's refer to the facade (外墙) of 24 was initially the Church of Mater Dei (圣母大教堂) .First 25 ( build ) in 1580 , the Ruins of St.Paul's is the iconic site of Macao. Originally made of wood , the structure 26 ( burn ) down in a fire during a typhoon in 1835 , with only the beautiful granite (花岗岩) facade remaining and the grand stairs of 68 stone steps 27 ( lead ) up to it. A steel stairway allows 28 ( tourist ) to climb up to the top of the facade where you can enjoy a panoramic (全景的) view of 29 whole city as well as the delicate stone carvings. In 2005 , the Ruins of St. Paul's was 30 ( official ) listed as part of the UNESCO World Heritage Site. Today , the facade of the Ruins of St. Paul's functions symbolically as the Holy Land to the city and the site is noted as one of the "eight new scenic spots " of Macao.