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Lamp of Valar

From Tolkien's book, Silmarillion: "One lamp they raised near to the north of Middleearth, and it was named Illuin; and the other was raised in the south, and it was named Ormal; and the light of the Lamps of the Valar flowed out over the Earth, so that all was lit as it were in a changeless day."

It requires agriculture.
It provides +1 culture, +2 faith,
+1 culture from monument, free monument in city.
Only two can exist in the world.