174. Great Pyramid of Khufu

This pyramid was built by King Khufu around 2560 BC. Khufu is the second Pharaoh of the fourth dynasty of rulers in Egypt. He was also known as "Cheops". Among all the 3 pyramids listed above, the Great Pyramid of Khufu is the only one pyramid in the list of seven wonders of the world.

This pyramid is believed to have been built over 20 years. When it was built its height was around 146 m. But now it is only 137 m. This was one of the tallest structures in the world till 19th century. It was covered with casings of stones to smoothen its surface. It probably is considered to be one among the seven wonders of world because of its sheer size.

The apex of the pyramid is missing and looks like it was never installed. The casings of the pyramids were removed by the Arabs during 14th century. The sloping angle of the sides is 51 degrees and 51 minutes. Each side is oriented towards one of the cardinal points of the compass that is north, south, east and west. This deserves a place among one of the seven wonders of world for its precision.

On the north face, is the pyramid's entrance. The King Khufu's chamber is located at the heart of the pyramid. The king's coffin is made of red granite, as like the interior walls of his chamber. 5 boat pits surround Khufu's Pyramid on the south and the east. Two of these are believed to be used by the Pharaoh during his life time. One boat is made into a Boat Museum. This is the only one existing wonder, among all the seven wonders of world.