THE GREAT PYRAMIDS

Pyramid building reached its maturity in the reign of Pharaoh Snefru of the 4th Dynasty (2543–2436 BCE); he constructed three pyramids; the first was known as the Bent Pyramid due to its double slope collapsed, the second was known as the Meidum Pyramid that collapsed too, the third was successfully known as the first true pyramid—called the Red Pyramid at Dahshur; it is about 220 meters (722 feet) wide at the base and 104 meters (341 feet) high, it is Egypt's first successful construction of a "true" smooth-sided pyramid.
THE PYRAMIDS of SNEFRU
Archaeologists speculate the Red Pyramid design built at a slope of 43° was an outcome of engineering crises experienced during the construction of Sneferu's two earlier pyramids. The first of these, the Pyramid at Meidum, collapsed in antiquity. In contrast, the second, the Bent Pyramid, had the angle of its inclination dramatically altered from 54 to 43 degrees part-way through construction, and it collapsed. The Red Pyramid was built at a slope of 43°, 105 meters (344 ft) high, and 220 meters (720 ft) wide; it is believed that Pharaoh Sneferu was buried in the Red Pyramid in 2589 BCE. Considering that the remains of King Sneferu have not yet been found or positively identified, it may still be possible that his sarcophagus and mummy lie hidden in his Red Pyramid in a hidden chamber.
The Meidum Pyramid, built by King Snefru, was known as the "collapsed pyramid" because of its ruined state; it was built around 2600-2575 BCE.
Sneferu's Bent Pyramid at Dahshur was modified during construction; the inclination angle changed from 55° to about 43° due to instability. Soon, it began to collapse around 2600 BCE, and the work was abandoned.Attribution 3.0
The Red Pyramid of Dahshur, named for the rusty, reddish hue of its red limestone, is the first true pyramid; it was built around 2575–2563 BCE; it has an angle of 43^ degrees, it is the third largest Egyptian pyramid after Khufu and Khafre at Giza
Statue of Egyptian Pharaoh Sneferu, Egyptian Museum, Cairo, carved limestone, 2600 BCE.Attribution-Share Alike 3.0
Prince Rahotep (son of Sneferu) and his wife Nofret, tomb statues from Meidum Pyramid, 2600 BCE.Share Alike 4.0 International
Statuette of King Khufu, builder of the Great Pyramid, 2600 BCE, found in 1903 in Abydos, Egyptian Museum in Cairo:GNU License
THE GREAT PYRAMIDS
The Great Pyramids of Giza were the burial places for Egyptian royalty during the Old Kingdom. The three large pyramids at Giza were built for three generations of Egyptian kings: Sneferu's son Khufu, his son Khafre, and his grandson Menkaure. Several smaller pyramids at Giza are also constructed for these kings' wives and mothers. Approximately 80 pyramids were built from the Kingdom of Kush, now in modern-day Sudan, to the pyramids at the Giza plateau. Pharaoh Khufu built the Great Pyramid for his tomb around 2600 BC. It took about 26 years, and it's the highest at 481 feet (147 meters) tall, almost as high as a 50 story skyscraper and has a base of 756 feet (230.33 meters). The Great Pyramid is built at an angle of approximately 51°50 degrees on each side and aligned with the constellation Orion. The Great Pyramid is the oldest of the Seven Wonders of the Ancient World and the only 7th wonder that has remained largely intact. To ensure that the king would join the circumpolar stars (situated around the earth's north pole), the Great Pyramid was laid out facing north toward the "indestructible" stars.
Mid-morning photo on the back of a camel, the first Great Pyramid you see is Menkaure, the smallest of the three main pyramids, built in 2510 BCE, 213 feet high, Slop: 51°20, In the middle is Khafre, the second largest and the second tallest built in 2570 BCE, 448 feet high, Slop: 53°10' it is the only pyramid that still has cladding at the top, In the far back is Khufu the Great Pyramid, built in 2600 BCE, 481 feet high, Slop: 51°50
"Worm's eye" view of the Great Pyramid of Khufu at 481 feet high
was the world's tallest structure for over 3,800 years, until
Lincoln Cathedral in England surpassed it in height around 1311 CE
The Great Kufu Pyramid with the Khufu ship museum at its side, and the Great Sphinx, 4th Dynasty, 2613–2494 BC. The Giza Plateau, Cairo
Close-up of the Great Pyramid of Khufu, 481 feet high,also known by its Greek name Cheops, built on the Giza Plateau, 4th Dynasty, 2600 BCE.
The Great Pyramids of Giza with moi and my itchy finger (how lovely!) on camel back; this view vantage point is a half-hour camel ride into the desert, The Giza Plateau, Cairo
I, with resting camels and The Great Pyramid of Khufu, The Giza Plateau, Cairo
I and other fellow tourist sitting on the base of The Great Pyramid of Khufu, Cairo
I inside the burial chamber of the Great Pyramid of Khufu, The Giza Plateau, Cairo
View of King Khafre's pyramid from the outskirts of Cairo city limits, on the Giza Plateau, Cairo
King Khafre's pyramid is surpassed only by the Great Pyramid, built by his father Khufu, the 4th Dynasty, 2613–2494 BC. The Giza Plateau
View of Khafre's Pyramid from the open desert of the Giza Plateau, the 4th Dynasty, 2613–2494 BC. Cairo
I and other tourist on camelback with The Great Pyramids of Khafre, Khufu, and the Great Sphnix on the Giza Plateau
The Great Pyramid of Khufu, of the Giza Plateau, 4th Dynasty, 2613–2494 BC. The Giza Plateau, Cairo
I in front of a Avenue Sphnix in its third shape, a body of a lion and head of a pharaoh, the statues extend over a mile to Luxor Temple, Cairo
On camelback to The Great Pyramids of Khufu, Khafre, Menkaure,
and the Great Sphnix on the Giza Plateau


1.) Fantastis sunset behind the Pyramid of Khafre 
2.) on the Giza Plateau, Cario, Egypt
3.)
HISTORIC PHOTOS OF THE PYRAMIDS
Historical documentation of 19th-century photography, etchings, and oil paintings on canvas of the pyramids. Photographers and artists have flocked to the Egyptian desert to see the colossal sculptures, monuments, and especially the Giza Plateau to capture the massive size of the pyramids specifically the Great Pyramid at 481 feet high, known as one of the Seven Wonders of the Ancient World.
The Great Pyramid and The Sphinx, Date: 1858, Photograher: Francis Frith, 1822-1898, Collection of: The Met, New York City,Public Domain
Pyramids of Giza, Date: 1860, Process: albumen print, Photographer: W. Hammerschmidt, Source: Getty Museum:Public Domain
Pyramide de Chéops (Grande Pyramide), Medium: Salted paper print from paper negative, Date: 1852, Photograher: Félix Teynard, French, 1817–1892, Collection of: The Met, New York CityPublic Domain
The Great Pyramid from the plain, Abstract/medium: 1 photographic print, Date: 1862, Photo by Francis Frith, 1822-1898, Source: Library of Congress:Public Domain
Five on top of the Great Pyramid LCCN2004707589, 1 slide : lantern, hand colored, date: 1894, Photographer: William Henry Jackson, 1843–1942, Collection: Library of Congress:Wikimedia Commons
Great Pyramid (5147211672).jpg, Date: 1890, Description: Coloured photo of the pyramid of Khufu showing the north and west faces of the pyramid, ca. 1890. Photographer: Vincent Brown:Attribution 2.0
The Great Sphinx of Giza partly under sand, Date: 1839, Object type: 19th century oil painting, Artist: David Roberts, 1796–1864, Source: Berger Collection:Wikimedia Commons
Giza pyramids seen through the installation Together by Lorenzo Quinn during "Forever is Now" exhibition, date: 2021, Photographer: Mona Hassan Abo-Abda:ShareAlike 4.0
View of the Great Pyramid of Giza, Watercolor, Date: 1760, Artist: Luigi Mayer, 1755–1803,Wikimedia Commons
Man riding a camel in front of the Great Pyramid, Date: 1900, Source: Travelers in the Middle East, TIMEA:Share Alike 2.5 Generic
A man, a camel, an oasis ?, and the pyramids of Giza, date: 1917, Photo: Brown & Dawson, The NY Times archive:Wikimedia Commons
The Great Pyramids during the Inundation - TIMEA, Date: 1878, Author: Georg Ebers, 1837-1898, Fondren Library:Share Alike 2.5 Generic
The pyramids, Photo: Henri Béchard, Date: 1890Wikimedia Commons
Pyramids, Digital ID: 88405, date: 1924, Inscribed on negative, George D'Andria/ Pyramids/ 2-29-24Wikimedia Commons
Egypt: the pyramids at Giza and the Sphinx, Colour lithograph by G.W. Seitz, 1878, after Carl Werner, 1870Attribution 4.0
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