It's 756 ft long on each side, 450 ft high and is composed of 2,300,000 blocks of stone, each about 2 1/2 tons in weight. and the whole structure is perfectly oriented to the points of the compass. Even in the 19th century, it was the tallest building in the world and, at the age of 4,500 years, it is the only one of the famous "Seven Wonders of the Ancient World" that still stands. Even today it remains the most massive building on Earth. It is the Great Pyramid of Khufu, at Giza, Egypt.
Above is the great pyramid of giza It is the oldest and biggest of the three pyramids in giza bulit in ancient egypt . This was constructed by pharaoh khufu. Believed to be constructed in the year 2530 BC and has a total of three tombs inside.
Chefren Pyramid ~ The Pyramid of Khafre, also known as the Pyramid of Chefren,is the second-largest of the ancient Egyptian Pyramids of Giza and the tomb of the fourth-dynasty pharaoh Khafre (Chefren).