Here is my opinion. The phrase " it is well known " doesn't fly in this context. I read it 3 times and it just sounded awkward.
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AlpheccaStarsBerlin's tour guides are well known for captivating its visitors with exciting stories about the city and introducing them to the city's charms.With the same words, that seem to work much better than the original. How about: Berlin's tour guides are well known for their captivating and exciting stories, as well as narrartions revealing the charms