Flying Machines in the Ancient World There are an innumerable amount of references to Vimanas or flying machines in Hindu Literature. It's not rare or unusual to find references to people taking vimanas to fly to other planets. The Vymaanika Shastra (Science of Aeronautics) can be found here - http://sacred-texts.com/ufo/vs/index.htm In the Srimad Bhagavatam, the only authentic Purana that I actually have, I've found many many references to Vimanas of which cannot be dismissed as metaphoric or symbolic: A Translation of the Srimad Bhagavatam - http://vedabase.net/sb/ "At the time of the final devastation of the complete universe [the end of the duration of Brahma's life], a flame of fire emanates from the mouth of Ananta [from the bottom of the universe]. The yogi sees all the planets of the universe burning to ashes, and thus he leaves for Satyaloka by airplanes used by the great purified souls. The duration of life in Satyaloka is calculated to be 15,480,000,000,000 years." (Srimad Bhagavatam 2.2.26) "In the Vaikuntha planets the inhabitants fly in their airplanes, accompanied by their wives and consorts, and eternally sing of the character and activities of the Lord, which are always devoid of all inauspicious qualities. While singing the glories of the Lord, they deride even the presence of the blossoming madhavi flowers, which are fragrant and laden with honey." (Srimad Bhagavatam 3.15.17) "The inhabitants of Vaikuntha travel in their airplanes made of lapis lazuli, emerald and gold." - (3.15.20) "The home and household paraphernalia of Kardama, who was one of the Prajapatis, was developed in such a way, by dint of his mystic powers of austerity and yoga, that his opulence was sometimes envied by those who travel in outer space in airplanes." (33.15) "In the capital city there were many palaces, city gates and surrounding walls, which were already very, very beautiful, and on this occasion all of them were decorated with golden ornaments. The domes of the city palaces glittered, as did the domes of the beautiful airplanes which hovered over the city." (9.56) "As soon as the symptoms of his liberation were manifest, he saw a very beautiful airplane coming down from the sky, as if the brilliant full moon were coming down, illuminating all the ten directions." (4.12.19) "When Dhruva Maharaja was attempting to get on the transcendental plane, he saw death personified approach him. Not caring for death, however, he took advantage of the opportunity to put his feet on the head of death, and thus he got up on the airplane, which was as big as a house." (4.12.30) "Dhruva was seated in the transcendental airplane, which was just about to start, when he remembered his poor mother, Suniti. He thought to himself, "How shall I go alone to the Vaikuntha planet and leave behind my poor mother?" (4.12.32) "While Dhruva Maharaja was passing through space, he gradually saw all the planets of the solar system, and on the path he saw all the demigods in their airplanes showering flowers upon him like rain." (4.12.34) "Dhruva Maharaja thus surpassed the seven planetary systems of the great sages who are known as saptarsi. Beyond that region, he achieved the transcendental situation of permanent life in the planet where Lord Visnu lives." (4.12.35) "Accompanied by the order carriers of Lord Visnu, Ajamila boarded an airplane made of gold. Passing through the airways, he went directly to the abode of Lord Visnu, the husband of the goddess of fortune."* (6.3.44) "One time while King Citraketu was traveling in outer space on a brilliantly effulgent airplane given to him by Lord Visnu, he saw Lord Siva, surrounded by Siddhas and Caranas. Lord Siva was sitting in an assembly of great saintly persons and embracing Parvati on his lap with his arm. Citraketu laughed loudly and spoke, within the hearing of Parvati." (6.17.4) "For that battle the most celebrated commander in chief, Maharaja Bali, son of Virocana, was seated on a wonderful airplane named Vaihayasa. O King, this beautifully decorated airplane had been manufactured by the demon Maya and was equipped with weapons for all types of combat. It was inconceivable and indescribable. Indeed, it was sometimes visible and sometimes not. Seated in this airplane under a beautiful protective umbrella and being fanned by the best of camaras, Maharaja Bali, surrounded by his captains and commanders, appeared just like the moon rising in the evening, illuminating all directions." (7.10.16) "The yogi who desires to enjoy in the pleasure gardens of the demigods should meditate on the purified mode of goodness, which is situated within Me, and then the heavenly women, generated from the mode of goodness, will approach him in airplanes." (11.15.25) The Hindu Scriptures seem to clearly state that the Devas and Devis (Gods and Goddesses) live on higher planetary systems. But the Gods seem to have come before the humans, and are not considered to be "aliens" like how we think of them. What do you all think of this? Does this explain how some ancient monuments are built?