Blocks with a variable number of corners that fit together perfectly. These blocks show traces of molding processes ánd fit together so absolutely perfect that the best explanation is that these blocks are made of a type of geopolymer.
Blocks with a variable number of corners. More straight lines in the blocks and a less perfect fit than the geopolymer variant.
Blocks with a variable number of corners that have (only) straight corners.
Several theories exist about their function. For example a means to aid the transport or a means to tune the building to a certain frequency. No certain proof exist for any theory and none stands out for being the most plausible. Function unknown.
Blocks that have cuts in them which were one filled with a metal alloy to give the structure more strength. Also wood has been found in these cuts, though the question arises if these were not filled with the wood in a later period when the original metal had already detiorated.
Acoustic, meaning that it at least amplifies sounds in a pure way and possibly points to technology that uses and or produces vibrations for a yet unknown purpose.
Rock cut trenches or roads, often with niches that are (probably) not meant as rooms for living and are tied to the path that runs passed them. These trenches are often labelled as roads, but their function seems more obscure. They vary in width and height. Sometimes too narrow for normal walking for even one person. Sometimes there are steps, sometimes there are 2 ruts, 3 ruts or 1 or no rut.
One or more buildings that are coherently aligned to stars, constellations or astronomical events or phenomena.
Structures that are built in the exact proportions of the earth proving the builders had exact knowledge of the size of our planet. In case of the Great Pyramid, the Pyramid of Khufu, to the accuracy of our modern day satellite measurements of the globe.
Cut out stairs starting nowhere and going nowhere.
Blocks that way are heavier than 1.000 tons, equivalent of 100.000 kilos.
Walls that are built with precision fit without the use of mortar (cement).
Not necessarily a coffin, but definitely a big box. To explain away the many found huge granite boxes, mainly in Egypt, as coffins is too easy. As in many cases a body was never found and some of them were even still closed (and for grave robbers or anyone else, to move a 20 or 30 ton lid and put it back in exactly fitting is not that easy, nor logical).
Different building techniques at the same site. Assumably built by different cultures over different periods of time. These building techniques are characterised by a diminishing quality as they get more modern. The older, the larger and preciser the blocks.
Stones that have been heavily eroded and thus presumably very old, though the weather conditions need to be taken into account as they are harsher from one area to the next.