All of those have been built very simple. Šalovanjem dasaka, greda, drveća, i onda ređanjem nekih cigli, kamenja i kamenčića i zalivanjem malterom, smešom za povezivanje istih u celinu. Vreme je kasnije učinilo svoje, kiše i Sunce su ostavili svoj duboki trag na materijal. Žitelji tih davnih vremena svakako nisu imali savremene mašine ili kranove za podizanje tih kamenih gromada. S druge strane, pitanje je i koliko su teški ti kameni blokovi i te cigle, da li su puni ili unutra šuplji. Ako su šuplji, samo imaju spolja nekakav omotač, onda je i eho moguć, zvonka unutrašnjost objekta.
All of those have been built very simply. By making planks, beams, trees, and then arranging some bricks, stones and pebbles and pouring them with mortar, a mixture to connect them into a whole. Time later took its toll, the rains and the sun left their deep mark on the material. The inhabitants of those ancient times certainly did not have modern machines or cranes to lift those boulders. On the other hand, the question is how heavy those stone blocks and those bricks are, whether they are solid or hollow inside. If they are hollow, they only have some kind of shell on the outside, then an echo is also possible, a ringing interior of the object.
The same is with all pyramids and the other similar objects all over the World. That's my belief.
