Histories 2.155

1 I have often mentioned the Egyptian oracle, and shall give an account of this, as it deserves. This oracle is sacred to Leto, and is situated in a great city by the Sebennytic arm of the Nile, on the way up from the sea.

2 Buto is the name of the city where this oracle is; I have already mentioned it. In Buto there is a temple of Apollo and Artemis. The shrine of Leto where the oracle is, is itself very great, and its outer court is sixty feet high.

3 But what caused me the most wonder among the things apparent there I shall mention. In this precinct is the shrine of Leto, the height and length of whose walls is all made of a single stone slab; each wall has an equal length and height; namely, seventy feet. Another slab makes the surface of the roof, the cornice of which is seven feet broad.