It was probably in Palestineabout six thousands years ago when a man erected a first menhir. Formations of menhirs then followed, thousands was erected at places asunder substantially distant. There is not a rarity not even ten or twelve meters high over a heft of several hundreds tons. The biggest menhir called "Mené er Groah" near Lockmariaquer at Bretagne is 23,5 meters high. Probably at the same time or little later dolmens were built in plenitude, too. They are usually two or more large rocks, on which in some cases even 100 tons cover plate is put. It was built 2000 dolmens in India, and in Europe, Oceania and Tibet there were built also plenty. Dolmens Arabic, Palestine, Caucasian and other are known, too. More and more interesting creations of olden civilization are cromlechs whose ground plot has a form of circle and were built up from bulky rock, whereupon cover plates were put. Resembling bulky megalithic constructions were found in northern Africa, Pyrenean peninsula, Peru, Colorado and at many other places. Clay mounds are also mysterious constructions and were built also in plurality on all continents in various sizes. At American continent they are called "Mound" and more than hundred thousands there were built. The biggest construction like this is artificial hill Silbury Hill at Europe. It is 40 meters high and its circular basis occupies a surface of two hectares. 36 millions baskets of chalk and clay was need for its erection. Menhirs occur at many places in so far undocumented groups. A lengthwise stone heap of different sizes in dimensions about 10x 100 meters and ca 2 meters in height was piled up in spacing of late Celtic habitation on woody hill about 1,5 kilometers left hand shore of river Vltava (Czech Republic) in vertical direction to watercourse. EZ of watercourse moved all the time by a different influence of water upon the stone heap and transferred the energy to it. The similar menhirs were built probably at other places on the ground of simplicity and suitability. Several tens of accurately surfaced cylinders from coarse-grained granite, which are situated in surroundings of Zvanovice brook near Jevany, to the east from Prague, can be also designated like menhirs. Most of these stones have identical average 120 centimeter, only some few have the average smaller. The height is variable - it moves from 30 to 70 centimeters. According a tale of local people many of those cylinders have finished on private gardens or have been broken. On adjoining hill alike mysterious objects are situated. Regular stony blocks and stones of uncertain shapes are dislocated there. All stony objects have rounded caverns full of water on their apexes. A rock placed in energy component of watercourse has larger energy value than the watercourse. It follows that varied high stony cylinders had various energy values, so it is a regulation of energy. By the height of stones and selected time of staying there, people could have determined what quantity of energy they can draw. Stony objects placed on adjoining hill were not located randomly but they were put into EZ of watercourse. Water in their caverns took over the energy of rock. A drink of so energy modified water had a curative effect. The iron pole in India originates from 9.century B. C., hefts 17 tons, is 16 m high thereof 7 meters is above the ground, and all consists of chemical pure iron. It is doubtless also menhir. In contrast of rock an iron has manifold larger fundamental energy value, which raises by its placing to energy component. Unnoticed quantity of hypothesis, whereby are these constructions substantiated, only prove that as yet we don´t know to what purpose they could have served and why people of long past civilization applied to it so much effort. From my research followed on, that menhirs, dolmens, cromlechs and clay mounds could have been used like amplifiers and storage batteries of cosmic energy with following utilization of energy for curative purposes. The new conception for exploitation of menhirs arranges the megalithic culture to a higher evolutionary degree until have been mentioned till this time. People of that era were acquainted with strange energy and used it by unknown method. It may be the principal reason why authors of technical literature of largely description character could not have given reasons for what kind of purpose the megalithic constructions could have been built. Energy exploitation of menhirs can be considered like a first hold at the solving of following problems, which can be heap sight complicated than we could presuppose. From the mentioned experiments follows that megalithic constructions were built for energy gain. I suppose, however, that reasons for mentioned three sorts of megalithic constructions (menhirs, dolmens and cromlechs) is impossible to judge globally. Their architects kept certainly serious reasons for the difference of constructions. It is also necessary to realize that they were built from various sorts of minerals transported in some cases from distant areas, though other minerals were sufficient numbers at near surroundings. Dolmens and cromlechs were built from various sorts of minerals, too. Every substance has its specific code, which results from distances of EZ and interzones. Other codes different from primary codes rise at combination of minerals. The same result can be reached at combinations of minerals with other substances. Constructors of megalithic buildings did not create energy values only quantitative but also qualitative. I have not been successful even with approximation to qualitative energy values because it is a matter for long-term research in furnished laboratories under collaboration of software technologists. Therefore I will restrict in next descriptions of megalithic constructions only to quantitative energy value. In cases, where combinations of minerals or another substances occur, can be speculated that architects there created also qualitative values. I sympathize with each one, who thinks that it is incredible, because primarily I have supposed, too. Seeing that the unbelievable effects will more escalate, I consider like necessary to take a think if a prehistoric man, which we know from ancestry, can be given to connection with the advanced technique that shown megalithic constructions and also artifacts from excavations such as boomerang. This dissonance is perceptible there, and historians will be obliged to re-value a great deal of various things. Archaeologist find in mutually distant part of our globe boomerangs as well as menhirs. Apart of Australia boomerangs were used also in northeaster Africa; they were known in ancient Egypt and Mesopotamia, and even in Europe. An oak boomerang, about 2.200 years old, was dug out in Holland. The oldest boomerang was found in Poland according to the radiocarbon method was its age approximately 20.300 years. In view of the fact that wood is not a very durable material, it may be assumed that long ago the use of boomerangs was quite widespread. Menhirs and the boomerang have their common ancient origin, are found on various continents, and share a high degree of technical sophistication. Czech redactor Jan Novak has written "The aerodynamics of the boomerang is much more complex than that the aircraft wing, whose design cannot be conceived without any complex calculations or research in aerodynamic laboratories. The uplift of the aircraft wing is due to the shape of the wing that forces the air to flow faster along the upper surface than along the bottom one. A boomerang has the same profile, but the aerodynamics of this throwing tool is much more complex. The boomerang arms are at an obtuse angle and during flight they rotate around the centre of gravity that, however, is not situated at the point of the bend, but in free space a couple of inches below. Apart from the rotation, the arms perform the forward motion in the direction where the boomerang has been thrown. The arm rotating in the direction of the flight is flown over by air faster (as the speed of boomerang rotation and its forward speed add) than the other arm rotating against the direction of flight (In this case the speeds are subtracted). This results in the formation of a force that should incline the axis of rotation. Nevertheless, the issue is not as simple as that, due to an additional remarkable phenomenon called precession. This occurs with every rotating body and has the effect of attempting to keep the axis of rotation in a single direction. In this case it does not succeed, as the aerodynamic forces prevail, but it influences the flight of the boomerang so that the flight route acquires a complex curve ending at its origin. The flight properties of this primitive tool are quite extraordinary. The occurrence of a boomerang encountering thermal airflow and flying a distance of over 16 kilometres was observed". I would not be surprised if some sceptics would explain the boomerang as a bent branch that by pure chance exhibited the flight properties described above, and then served as a model for the manufacture of other boomerangs. Such an explanation would not stand up to the existence of boomerangs on several continents, similar to the case of menhirs. The discussion of a development of the boomerang does not come into question, as it must have been designed solely on the basis of aerodynamics, which had been instigated by the development of aircraft. Known facts indicate that the issue could only have been based on the handing over of information without knowledge of the actual principle involved. The age of Palestinian menhirs is estimated at about 4.500 years; the age of the Polish boomerang is about 20.300 years. The boomerang was used on Earth 20,300 years ago, for reasons of inadequate technical development our civilisation was unable to explain the principle of its behaviour until the nineteenth century. We may therefore assume that menhirs and their function have not yet been discovered for the very same reason. At the appreciation of menhirs, dolmens and cromlechs from energy standpoint their evolution is perceptible. After experiences that watercourses are sources of energy, people don´t evade that individually erect rock around watercourse works a human more markedly. Next was probably the finding that the same character has a rock considerable distant from watercourse, and therefore rocks were placed around habitations. Some people got left because their rock was not energetic, and during further observation was concluded that the rock is able to obtain energy quality only at some positions. Afterwards people could have taught to identify such place, and likely was stated that tall rock provides a little quantity of energy even outside energy place, and so they tried to compensate it by larger mass of rock. Another finding could have been that tall eighty rock, which is built to energy place, has more energy. People could have grown up to it that a rock has not the identical recuperative effect every time but only sometimes in limited time and probably they found a connection of recuperative effect with flow of water. By further observation people could have grown up to the finding that rocks the energy quickly gather and after slowly fade away. As rocks were used plenty to completion of energy, further finding could have followed on that some rocks or their combinations are preferable. Construction of large dolmens protracted the time of optimal effect, and a combination of rocks affected the quality of energy. I suppose that cromlechs generated identical conditions like dolmens, but more people could have participated of recuperative actions. The applied time of recuperative action of cromlechs was prolonged probably with energy completion by means of fires. Hundreds of thousands of menhirs, dolmens and clay mounds placed at all continents, and manipulation with energy, which still lurks to attention of science, infers that it will not be easy to take bearings in ancestry.