One last thing about the terraces vs. the pyramids: The pyramids look old, dead, sterile; the terraces in rainy season are very much alive, blooming with green rice shoots and far more beautiful in their curvaceousness (they arc like the back of a woman lying down).
The pyramids are giant tombstones, monuments to a dead religion. The terraces are still being used, and sustain the descendants of their creators, and are the source of some of the best-tasting rice in the world.
Again, I've been there, I've tasted the rice--cooked and uncooked. Sprinkle rock salt on it and it qualifies as a meal. Has not needed a single bag of fertilizer for thousands of years. Last I heard about the pyramids, they're still gathering dust.