It is impossible to believe that humans built them. It is believed that at the time of the construction of these structures, nowhere else in the world had the technologies and capabilities to build such. Some researchers attribute the authorship to aliens or Indian yogis who wield magic.
1. Metal column
A metal pillar known as the Pillar of Indra stands in the courtyard of the Qutb Minar Mosque in Delhi. The mystery of the structure is that the column is 99.7% pure iron.
Its age is estimated at 1.5 thousand years. During this time, it has not been covered with rust or corrosion. Stands like new, unprotected from the vicissitudes of the weather. The column weighs about eight tons. Such a colossus made of pure iron is very problematic to create using modern technology. How it was made 1500 years ago is generally not clear. They say the aliens gave it (just kidding).
2. Great wall of India
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Everyone knows about the Great Chinese. But the Indians also boast a large defensive wall, built even earlier than the Chinese one.
This is the wall surrounding the Kumbalgarh fortress, 36 kilometers long and up to 8 meters wide. Nobody could take the wall by storm. It is very well preserved to this day. As well as the features of the construction of the Great Wall of China, how the Kumbalgarh wall was erected leaves many unanswered questions.
3. Barabar Caves
It is believed that these caves were created by hand in the 3rd century. However, visitors to this man-made miracle are hard to believe that it was created without the use of modern precision instruments.
It is difficult to explain what technologies the Indians possessed in the 3rd century, that they could process stones so perfectly. You will not see such even corners in our "panels".
4. Indian wells
There are wells in India that cannot be called the wonders of the world. These amazing structures, built mainly in the 9-11th centuries, speak of the highest level of Indian engineering knowledge.
After all, it is difficult to build a majestic structure above the ground, but to make a perfectly thought-out structure that goes deep underground, in general, is on the verge of fantasy. Moreover, it is not just a well from which many people can take water, and going down to the water at any level. But it looks like a real work of art. These wells include Chand Baori (Rajasthan state), Rani-ki-Vav (Gujarat state) and others.
This, of course, is only a small fraction of the wonders that the Indian land is so rich in. The great Indian civilization has created a huge number of amazing architectural monuments that amaze and delight.