(Vintage photo of man standing atop the Great Sphinx of Giza—click to enlarge)
Devotee: They also have the big structures in Egypt, the pyramids.
Devotee (2): Perhaps they used sand also.
Devotee (3): The Greeks say that they built their buildings... They hired some very big men called cyclopses, big giants. And they came and built all the buildings.
Prabhupāda: Yes. And such stories are in Mahābhārata also. The demons were engaged, giants and demons, for construction. Yes. And they were very good artist, how to do it. Now we employ the first-class men, so-called first-class engineering, but they were meant for the demons and giants. Yes.
Devotee (3): Well, that explains how they built such fantastic temples and palaces.
Devotee (2): Some people say, "Why don't we see any giants any more today?"
Prabhupāda: Yes. In the Africa, there were many giants (click link)... very high, very strong.
Devotee: Where is that?
Devotee (3): In Africa some of the natives, very big, eight feet tall.
Prabhupāda: Very tall.
Devotee: In South America also, they used to have the Amazons, a big race.
Devotee (3): Didn't one demon construct a big parliament house for Kṛṣṇa? That demon Māyā? For King Yudhiṣṭhira?
Devotee (2): Aṣṭa-siddhi dāsa, when he came back from Fiji, he told us a story that the local people say that Kāliya snake, after he ran away, he lives in Fiji in a big lake.
Devotee: On top of a mountain.
Devotee (3): That's the (indistinct)?
Devotee (2): I'm not sure about that.
Prabhupāda: Yes, he was driven away from Vṛndāvana.
(Srila Prabhupada Morning Walk, Perth, May 16, 1975)