History of the world's tallest buildings to be tall, but its true height is not known. For thousands of years, the Great Pyramid in Egypt was the tallest "structure" in the world, but the Great Pyramid is not considered a building since it is not habitable. The earliest structures now known to be the tallest in the world were the Egyptian pyramids, with the Great Pyramid of Giza, at an original height of , being the tallest man-made structure in the world for over 3,800 years, until the construction of Lincoln Cathedral in 1300. From then until the completion of the Washington Monument (capped in 1884)
A. D. S. N. Prasad A. D. S. N. Prasad Dr. A. D. S. N. Prasad is the founder of Pathway Centers for Children, a non-profit and non governmental organization located in Chennai and other rural parts of Tamil Nadu, that is dedicated to the welfare of children with mental handicap and those who are destitute or otherwise disadvantaged. As a 22-year-old speech pathologist and audiologist, Prasad learned that to pay for his professional services clients quite often would have to sell everything they had and would make great sacrifices. Impressed by this, he eventually started giving free services to whoever needed it. Prasad established