The Great Pyramid of Giza

The Great Pyramid of Giza, also called Khufu's Pyramid or the Pyramid of Khufu, and Pyramid of Cheops, is the oldest and largest of the three pyramids in the Giza Necropolis bordering what is now Cairo, Egypt, and is the only remaining member of the Seven Wonders of the Ancient World. It is believed the pyramid was built as a tomb for Fourth dynasty Egyptian King Khufu (Cheops in Greek) and constructed over a 20 year period concluding around 2560 BC. The Great Pyramid was the tallest man-made structure in the world for over 3,800 years. Originally the Great Pyramid was covered by casing stones that formed a smooth outer surface, and 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 regarding the Great Pyramid's construction techniques. Most accepted construction theories 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 Queen's Chamber and King's Chamber are higher up within the pyramid structure. The Great Pyramid of Giza is the main part of a complex 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.

The Stonehenge

Stonehenge is a prehistoric monument located in the English county of Wiltshire, about 3.2 kilometres (2.0 mi) west of Amesbury and 13 kilometres (8.1 mi) north of Salisbury. One of the most famous prehistoric sites in the world, Stonehenge is composed of earthworks surrounding a circular setting of large standing stones and sits at the centre of the densest complex of Neolithic and Bronze Age monuments in England, including several hundred burial mounds. Archaeologists had believed that the iconic stone monument was erected around 2500 BC, as described in the chronology below. However one recent theory has suggested that the first stones were not erected until 2400-2200 BC, whilst another suggests that bluestones may have been erected at the site as early as 3000 BC (see phase 1 below). The surrounding circular earth bank and ditch, which constitute the earliest phase of the monument, have been dated to about 3100 BC. The site and its surroundings were added to the UNESCO's list of World Heritage Sites in 1986 in a co-listing with Avebury henge monument, and it is also a legally protected Scheduled Ancient Monument. Stonehenge itself is owned by the Crown and managed by English Heritage while the surrounding land is owned by the National Trust.

New archaeological evidence found by the Stonehenge Riverside Project indicates that Stonehenge served as a burial ground from its earliest beginnings. The dating of cremated remains found that burials took place as early as 3000 B.C, when the first ditches were being built around the monument. Burials continued at Stonehenge for at least another 500 years when the giant stones which mark the landmark were put up. According to Professor Mike Parker Pearson, head of Stonehenge Riverside Project:

"Stonehenge was a place of burial from its beginning to its zenith in the mid third millennium B.C. The cremation burial dating to Stonehenge's sarsen stones phase is likely just one of many from this later period of the monument's use and demonstrates that it was still very much a domain of the dead."

History of The Statue of Liberty

History of The Statue of Liberty

The Statue of Liberty National Monument officially celebrated her 100th birthday on October 28, 1986. The people of France gave the Statue to the people of the United States over one hundred years ago in recognition of the friendship established during the American Revolution. Over the years, the Statue of Liberty's symbolism has grown to include freedom and democracy as well as this international friendship.

Sculptor Frederic Auguste Bartholdi was commissioned to design a sculpture with the year 1876 in mind for completion, to commemorate the centennial of the American Declaration of Independence. The Statue was a joint effort between America and France and it was agreed upon that the American people were to build the pedestal, and the French people were responsible for the Statue and its assembly here in the United States. However, lack of funds was a problem on both sides of the Atlantic Ocean. In France, public fees, various forms of entertainment, and a lottery were among the methods used to raise funds. In the United States, benefit theatrical events, art exhibitions, auctions and prize fights assisted in providing needed funds.

Meanwhile in France, Bartholdi required the assistance of an engineer to address structural issues associated with designing such a colossal copper sculpture. Alexandre Gustave Eiffel (designer of the Eiffel Tower) was commissioned to design the massive iron pylon and secondary skeletal framework which allows the Statue's copper skin to move independently yet stand upright. Back in America, fund raising for the pedestal was going particularly slowly, so Joseph Pulitzer (noted for the Pulitzer Prize) opened up the editorial pages of his newspaper, "The World" to support the fund raising effort. Pulitzer used his newspaper to criticize both the rich who had failed to finance the pedestal construction and the middle class who were content to rely upon the wealthy to provide the funds. Pulitzer's campaign of harsh criticism was successful in motivating the people of America to donate.

Financing for the pedestal was completed in August 1885, and pedestal construction was finished in April of 1886. The Statue was completed in France in July, 1884 and arrived in New York Harbor in June of 1885 on board the French frigate "Isere" which transported the Statue of Liberty from France to the United States. In transit, the Statue was reduced to 350 individual pieces and packed in 214 crates. The Statue was re-assembled on her new pedestal in four months time. On October 28th 1886, the dedication of the Statue of Liberty took place in front of thousands of spectators. She was a centennial gift ten years late.

The story of the Statue of Liberty and her island has been one of change. The Statue was placed upon a granite pedestal inside the courtyard of the star-shaped walls of Fort Wood (which had been completed for the War of 1812.) The United States Lighthouse Board had responsibility for the operation of the Statue of Liberty until 1901. After 1901, the care and operation of the Statue was placed under the War Department. A Presidential Proclamation declared Fort Wood (and the Statue of Liberty within it) a National Monument on October 15th, 1924 and the monument's boundary was set at the outer edge of Fort Wood. In 1933, the care and administration of the National Monument was transferred to the National Park Service. On September 7, 1937, jurisdiction was enlarged to encompass all of Bedloe's Island and in 1956, the island's name was changed to Liberty Island. On May 11, 1965, Ellis Island was also transferred to the National Park Service and became part of the Statue of Liberty National Monument. In May of 1982, President Ronald Reagan appointed Lee Iacocca to head up a private sector effort to restore the Statue of Liberty. Fundraising began for the $87 million restoration under a public/private partnership between the National Park Service and The Statue of Liberty-Ellis Island Foundation, Inc., to date the most successful public-private partnership in American history. In 1984, at the start of the Statue's restoration, the United Nations designated the Statue of Liberty as a World Heritage Site. On July 5, 1986 the newly restored Statue re-opened to the public during Liberty Weekend, which celebrated her centennial.

Text courtesy of the National Park Service

The Statue of Liberty

The Statue of Liberty (French: Statue de la Liberté), or, more formally, Liberty Enlightening the World (French: La liberté éclairant le monde), was presented to the United States by the people of France in 1886. Standing on Liberty Island in New York Harbor, it welcomes visitors, immigrants, and returning Americans traveling by ship. The copper-clad statue, dedicated on October 28, 1886, commemorates the centennial of the signing of the United States Declaration of Independence and was given to the United States to represent the friendship established during the American Revolution. Frédéric Auguste Bartholdi sculpted the statue and obtained a U.S. patent for its structure. Maurice Koechlin - chief engineer of Gustave Eiffel's engineering company and designer of the Eiffel Tower - engineered the internal structure. Eugène Viollet-le-Duc was responsible for the choice of copper in the statue's construction and adoption of the repoussé technique, where a malleable metal is hammered on the reverse side.

The statue is of a robed woman holding a torch, and is made of a sheeting of pure copper, hung on a framework of steel (originally puddled iron) with the exception of the flame of the torch, which is coated in gold leaf (originally made of copper and later altered to hold glass panes). It stands atop a rectangular stonework pedestal with a foundation in the shape of an irregular eleven-pointed star. The statue is 151 ft (46 m) tall, but with the pedestal and foundation, it is 305 ft (93 m) tall.

Worldwide, the Statue of Liberty is one of the most recognizable icons of the United States and was, from 1886 until the jet age, often one of the first glimpses of the United States for millions of immigrants after ocean voyages from Europe. Visually, the Statue of Liberty appears to draw inspiration from il Sancarlone or the Colossus of Rhodes.

The statue is the central part of Statue of Liberty National Monument, administered by the National Park Service.

The general appearance of the statue’s head approximates the Roman Sun-god Apollo or the Greek Sun-god Helios as preserved on an ancient marble tablet (today in the Archaeological Museum of Corinth, Corinth, Greece) - Apollo was represented as a solar deity, dressed in a similar robe and having on its head a "radiate crown" with the seven spiked rays of the Helios-Apollo's sun rays, like the Statue's nimbus or halo. The ancient Colossus of Rhodes, one of the Seven Wonders of the Ancient World, was a statue of Helios with a radiate crown. The Colossus is referred to in the 1883 sonnet The New Colossus by Emma Lazarus. Lazarus's poem was later engraved on a bronze plaque and mounted inside the Statue of Liberty in 1903.

The statue, also known affectionately as "Lady Liberty", has become a symbol of freedom and democracy. She welcomed arriving immigrants, who could see the statue as they arrived in the United States. There is a version of the statue in France given by the United States in return.

The classical appearance (Roman stola, sandals, facial expression) derives from Libertas, ancient Rome's goddess of freedom from slavery, oppression, and tyranny. Her raised right foot is on the move. This symbol of Liberty and Freedom is not standing still or at attention in the harbor, it is moving forward, as her left foot tramples broken shackles at her feet, in symbolism of the United States' wish to be free from oppression and tyranny. The seven spikes on the crown epitomize the Seven Seas and seven continents. Her torch signifies enlightenment. The tablet in her hand represents knowledge and shows the date of the United States Declaration of Independence, in roman numerals, July IV, MDCCLXXVI.

The Leaning Tower of Pisa

The Leaning Tower of Pisa (Italian: Torre pendente di Pisa) or simply The Tower of Pisa (La Torre di Pisa) is the campanile, or freestanding bell tower, of the cathedral of the Italian city of Pisa. It is situated behind the cathedral and is the third oldest structure in Pisa's Piazza del Duomo (Cathedral Square) after the cathedral and the baptistry.

Although intended to stand vertically, the tower began leaning to the southeast soon after the onset of construction in 1173 due to a poorly laid foundation and loose substrate that has allowed the foundation to shift direction. The tower presently leans to the southwest.

The height of the tower is 55.86 m (183.27 ft) from the ground on the lowest side and 56.70 m (186.02 ft) on the highest side. The width of the walls at the base is 4.09 m (13.42 ft) and at the top 2.48 m (8.14 ft). Its weight is estimated at 14,500 metric tons (16,000 short tons). The tower has 296 or 294 steps; the seventh floor has two fewer steps on the north-facing staircase. The tower leans at an angle of 3.97 degrees. This means that the top of the tower is 3.9 metres (12 ft 10 in) from where it would stand if the tower were perfectly vertical.

Construction

The Tower of Pisa was a work of art, performed in three stages over a period of about 177 years. Construction of the first floor of the white marble campanile began on August 9, 1173, a period of military success and prosperity. This first floor is surrounded by pillars with classical capitals, leaning against blind arches.

The tower began to sink after construction progressed to the third floor in 1178. This was due to a mere three-meter foundation, set in weak, unstable subsoil. This means the design was flawed from the beginning. Construction was subsequently halted for almost a century, because the Pisans were almost continually engaged in battles with Genoa, Lucca and Florence. This allowed time for the underlying soil to settle. Otherwise, the tower would almost certainly have toppled. In 1198, clocks were temporarily installed on the third floor of the unfinished construction.

In 1272, construction resumed under Giovanni di Simone, architect of the Camposanto. In an effort to compensate for the tilt, the engineers built higher floors with one side taller than the other. This made the tower begin to lean in the other direction. Because of this, the tower is actually curved. Construction was halted again in 1284, when the Pisans were defeated by the Genoans in the Battle of Meloria.

The seventh floor was completed in 1319. The bell-chamber was not finally added until 1372. It was built by Tommaso di Andrea Pisano, who succeeded in harmonizing the Gothic elements of the bell-chamber with the Romanesque style of the tower. There are seven bells, one for each note of the musical scale. The largest one was installed in 1655.

After a phase (1990-2001) of structural strengthening, the tower is currently undergoing gradual surface restoration, in order to repair visual damage, mostly corrosion and blackening. These are particularly strong due to the tower's age and to its particular conditions with respect to wind and rain.

The architect

There has been controversy about the real identity of the architect of the Leaning Tower of Pisa. For many years, the design was attributed to Guglielmo and Bonanno Pisano, a well-known 12th-century resident artist of Pisa, famous for his bronze casting, particularly in the Pisa Duomo. Bonanno Pisano left Pisa in 1185 for Monreale, Sicily, only to come back and die in his home town. His sarcophagus was discovered at the foot of the tower in 1820. However recent studies seem to indicate Diotisalvi as the original architect due to the time of construction and affinity with other Diotisalvi works, notably the bell tower of San Nicola (Pisa) and the Baptistery in Pisa. However, he usually signed his works and there is no signature by him in the bell tower which leads to further speculation.