这段话有语法错误吗?顺便修饰一下

这段话有语法错误吗?顺便修饰一下
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We went to Warwick Castle today.There was a large square about4000squares.Many tourists stood around the spuare.Two knight were introduce many kinds of weapons in the middle of the square.There are a great number of wax figures and armors in the castle.The most popular thing is the Warwick ghosts.I bought three tickets for two classmates and I,because I was really interested but feared.Oh,it was extremely scary,I don't want to think it again.In the afternoon,we visited 莎士比亚故居（这怎么翻译啊）,kind of boring.