I think Kyoto is the best place to explain what Japanese is. There are a lot of traditional food, festival, historic buildings. Moreover, these are really in harmony with nature such as river, cherry blossom, and autumn leaves.
That’s so wonderful scenery that I can’t say any words.
These are why I like Kyoto.

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I think Kyoto is the best place to explain what Japanese [culture] is [like]. There [is (matching "food")] a lot of traditional food, festival[s], [and] historic buildings. Moreover, [it (meaning Kyoto) is] really in harmony with nature such as river[s], cherry blossom[s], and autumn leaves. [The scenery is so wonderful that it leaves me speechless.] [This is] why I like Kyoto.

Note: Even though you listed multiple reasons for why you like Kyoto, "This is why ..." is a set phrase. Or you could say: "These are the reasons why I like Kyoto."