Great Pyramid of Giza

 The Great Pyramid of Giza (also called the Pyramid of Khufu and the Pyramid of Cheops) is the oldest and largest of the three pyramids in the Giza Necropolis bordering what is now El Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, and the only one to remain largely intact. Egyptologists believe that the pyramid was built as a tomb for fourth dynasty Egyptian Pharaoh Khufu[1] (Cheops in Greek) and constructed over a 14 to 20-year period concluding around 2560 BC. Initially at 146.5 metres (480.6 ft), the Great Pyramid was the tallest man-made structure in the world for over 3,800 years, the longest period of time ever held for such a record. Originally, the Great Pyramid was covered by casing stones that formed a smooth outer surface; what is seen today is the underlying core structure. Some of the casing stones that once covered the structure can still be seen around the base. There have been varying scientific and alternative theories about the Great Pyramid's construction techniques. Most accepted construction hypotheses are based on the idea that it was built by moving huge stones from a quarry and dragging and lifting them into place.


There are three known chambers inside the Great Pyramid. The lowest chamber is cut into the bedrock upon which the pyramid was built and was unfinished. The so-called[2] Queen's Chamber and King's Chamber are higher up within the pyramid structure. The Great Pyramid of Giza is the only pyramid in Egypt known to contain both ascending and descending passages. The main part of the Giza complex is a setting of buildings that included two mortuary temples in honor of Khufu (one close to the pyramid and one near the Nile), three smaller pyramids for Khufu's wives, an even smaller "satellite" pyramid, a raised causeway connecting the two temples, and small mastaba tombs surrounding the pyramid for nobles.



It is believed the pyramid was built as a tomb for fourth dynasty Egyptian pharaoh Khufu[1] and constructed over a 14-[3] to 20-year period.[clarification needed] Khufu's vizier, Hemon, or Hemiunu, is believed by some to be the architect of the Great Pyramid.[4] It is thought that, at construction, the Great Pyramid was originally 280 Egyptian cubits tall, 146.5 metres (480.6 ft) but with erosion and absence of its pyramidion, its present height is 138.8 metres (455.4 ft). Each base side was 440 royal cubits, 230.4 metres (755.9 ft) long. A royal cubit measures 0.524 metres.[5] The mass of the pyramid is estimated at 5.9 million tonnes. The volume, including an internal hillock, is roughly 2,500,000 cubic metres.[6] Based on these estimates, building this in 20 years would involve installing approximately 800 tonnes of stone every day. Similarly, since it consists of an estimated 2.3 million blocks, completing the building in 20 years would involve moving an average of more than 12 of the blocks into place each hour, day and night.



The Great Pyramid consists of an estimated 2.3 million limestone blocks with most believed to have been transported from nearby quarries. The Tura limestone used for the casing was quarried across the river. The largest granite stones in the pyramid, found in the "King's" chamber, weigh 25 to 80 tonnes and were transported from Aswan, more than 500 miles away. Traditionally, ancient Egyptians cut stone blocks by hammering wooden wedges into the stone which were then soaked with water. As the water was absorbed, the wedges expanded, causing the rock to crack. Once they were cut, they were carried by boat either up or down the Nile River to the pyramid.[18] It is estimated that 5.5 million tons of limestone, 8,000 tons of granite (imported from Aswan), and 500,000 tons of mortar were used in the construction of the Great Pyramid.[19]



The Great Pyramid is surrounded by a complex of several buildings including small pyramids. The Pyramid Temple, which stood on the east side of the pyramid and measured 52.2 metres (171 ft) north to south and 40 metres (130 ft) east to west, has almost entirely disappeared apart from the black basalt paving. There are only a few remnants of the causeway which linked the pyramid with the valley and the Valley Temple. The Valley Temple is buried beneath the village of Nazlet el-Samman; basalt paving and limestone walls have been found but the site has not been excavated.[32][33] The basalt blocks show "clear evidence" of having been cut with some kind of saw with an estimated cutting blade 15 ft in length capable of cutting at a rate of 1 1/2 inches (40 mm) a minute. John Romer suggests this "super saw" may have had copper teeth and weighed up to 300 lbs. He theorizes such a saw could have been attached to a wooden trestle and used in conjunction with possibly vegetable oil, cutting sand, or emery or pounded quartz to cut the blocks and would have required at least a dozen men to operate it.[34]

Tikal,Guatemala

Tikal (or Tik’al according to the modern Mayan orthography) is one of the largest archaeological sites and urban centres of the pre-Columbian Maya civilization. It is located in the archaeological region of the Petén Basin in what is now northern Guatemala. Situated in the department of El Petén, the site is part of Guatemala's Tikal National Park and in 1979 it was declared a UNESCO World Heritage Site.

Tikal was the capital of a conquest state that became one of the most powerful kingdoms of the ancient Maya. Though monumental architecture at the site dates back as far as the 4th century BC, Tikal reached its apogee during the Classic Period, ca. 200 to 900 AD. During this time, the city dominated much of the Maya region politically, economically, and militarily, while interacting with areas throughout Mesoamerica such as the great metropolis of Teotihuacan in the distant Valley of Mexico. There is evidence that Tikal was conquered by Teotihuacan in the 4th century AD.[4] Following the end of the Late Classic Period, no new major monuments were built at Tikal and there is evidence that elite palaces were burned. These events were coupled with a gradual population decline, culminating with the site’s abandonment by the end of the 10th century.

The name Tikal may be derived from ti ak'al in the Yucatec Maya language; it is said to be a relatively modern name meaning "at the waterhole". The name was apparently applied to one of the site's ancient reservoirs by hunters and travellers in the region. It has alternatively been interpreted as meaning "the place of the voices" in the Itza Maya language. Tikal, however, is not the ancient name for the site but rather the name adopted shortly after its discovery in the 1840s. Hieroglyphic inscriptions at the ruins refer to the ancient city as Yax Mutal or Yax Mutul, meaning "First Mutal". Tikal may have come to have been called this because Dos Pilas also came to use the same emblem glyph; the rulers of the city presumably wanted to distinguish themselves as the first city to bear the name. The kingdom as a whole was simply called Mutul,[9] which is the reading of the "hair bundle" Emblem Glyph seen in the accompanying photo. Its precise meaning remains obscure, although some scholars think that it is the hair knot of the Ahau or ruler.

 The closest large modern settlements are Flores and Santa Elena, approximately 64 kilometres (40 mi) by road to the southwest.[10] Tikal is approximately 303 kilometres (188 mi) north of Guatemala City. It is 19 kilometres (12 mi) south of the contemporary Maya city of Uaxactun and 30 kilometres (19 mi) northwest of Yaxha.[6][11] The city was located 100 kilometres (62 mi) southeast of its great Classic Period rival, Calakmul, and 85 kilometres (53 mi) northwest of Calakmul's ally Caracol, now in Belize.

The city has been completely mapped and covered an area greater than 16 square kilometres (6.2 sq mi) that included about 3000 structures. The topography of the site consists of a series of parallel limestone ridges rising above swampy lowlands. The major architecture of the site is clustered upon areas of higher ground and linked by raised causeways spanning the swamps.The area around Tikal has been declared as the Tikal National Park and the preserved area covers 570 square kilometres (220 sq mi).

 There are traces of early agriculture at the site dating as far back as 1000 BC, in the Middle Preclassic. A cache of Mamon ceramics dating from about 700-400 BC were found in a sealed chultun, a subterranean bottle-shaped chamber.

Major construction at Tikal was already taking place in the Late Preclassic period, first appearing around 400–300 BC, including the building of major pyramids and platforms, although the city was still dwarfed by sites further north such as El Mirador and Nakbe.  At this time, Tikal participated in the widespread Chikanel culture that dominated the Central and Northern Maya areas at this time – a region that included the entire Yucatan Peninsula including northern and eastern Guatemala and all of Belize.

Two temples dating to Late Chikanel times had masonry-walled superstructures that may have been corbel-vaulted, although this has not been proven. One of these had elaborate paintings on the outer walls showing human figures against a scrollwork background, painted in yellow, black, pink and red.