What it means
は〇〇で有名 means that a person, place, organization, or thing is famous for a particular feature, product, activity, or other noun. The topic marked by は is known because of the noun phrase before で. The expression is neutral and commonly used in descriptions of places, people, companies, and cultural products.
Usage note
The phrase before で identifies the reason for the fame, not usually a location. For example, 東京は桜で有名 means that Tokyo is famous for cherry blossoms, while a location meaning would normally use に or で in a different construction.
How to use it
NounはNounで有名です
京都は古い寺で有名です。
Kyoto is famous for its old temples.
NounはNounで有名だ
京都は古い寺で有名だ。
Kyoto is famous for its old temples.