Tell your Chinese friend that the British Museum is one of the biggest museums in the world and that there are a great many things there worth seeing.
Try to use 数得上， 有看头 and 可。
英国博物馆数得上是世界上最大的博物馆，里面有看头的东西可多了。
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Click on the Chinese to hear the sentences spoken.
Alternatively one can say 英国博物馆算得上是世界上最大的博物馆,里面很多东西很有看头。