About them...

 Stonehenge

 Colloseum

 The Great wall of China

 Taj Mahal

Medieval World

  In the 19th and early 20th centuries, some writers wrote about lists with names such as Wonders of the Middle Ages, Seven Wonders of the Middle Ages, Seven Wonders of the Medieval Mind, and Architectural Wonders of the Middle Ages. However it is unlikely that these lists originated in the Middle Ages because the word medieval was not invented until the Enlightenment-era, and the concept of a Middle Age did not become popular until the 16th century. Brewer's Dictionary of Phrase and Fable refers to them as "later list[s]" suggesting the lists were created after the Middle Ages.
Many of the structures on these lists were built much earlier than the Medieval Ages, but were well known.
Typically representative are:

• Stonehenge
• Colosseum
• Catacombs of Kom el Shoqafa
• Great Wall of China
• Porcelain Tower of Nanjing
• Hagia Sophia
• Leaning Tower of Pisa

Other sites sometimes included on such lists:

• Taj Mahal
• Cairo Citadel
• Ely Cathedral
• Cluny Abbey

10 interesting facts about the Great Pyramid of Giza

   Still lots of myseries are surrounding the Great Pyramid of Giza which probably are never going to be revealed, but I think that it`s the shade of a mysery which make the wonder even more magneting and admiring. Going through the notes and research works about the Pyramid I found some particularly interesting and catchy facts which are highlihted below:

   1. Let’s start with a little funny paradox, did you know that the owner of the largest pyramid of Giza is also known for having the smallest Egyptian royal sculpture ever discovered? The ivory statue of  paraoh Khufu (AKA Cheops) found at Abydos is 7.5 cm  high.

   2. But you wouldn’t call Khufu a small guy in real life, in fact he is known as a big and cruel leader. As described by Herodotus: “Cheops moreover came, they said, to such a pitch of wickedness, that being in want of money he caused his own daughter to sit in the stews, and ordered her to obtain from those who came a certain amount of money (how much it was they did not tell me): and she not only obtained the sum appointed by her father, but also she formed a design for herself privately to leave behind her a memorial, and she requested each man who came in to give her one stone upon her building: and of these stones, they told me, the pyramid was built which stands in front of the great pyramid in the middle of the three, each side being one hundred and fifty feet in length.”

  3. Here are some significant figures: Khufu was 20 when he came to the throne and at once began building his “Stairway to Heaven”. Khufu was the first pharaoh who build a pyramid at Giza. The entire project took about 23 years to complete, 2,300,000 building blocks, weighing an average of 2.5 tons each (Although
some weigh as much as 16 tons) were used to build the great pyramid. The length of each side of the pyramid at the base is 755 feet (230.4 m). They rise at an angle of 51 52′ to a height, originally, of 481 feet (147 m) but nowadays 451 feet (138 m).


  4. Some believe that Khufu’s pyramid at Giza was built by slaves, but modern Egyptologists accept that it was built by many tens of thousands of skilled workers rather than slaves. It is known that Khufu’s nephew Hemiunu was appointed head of construction for the Great Pyramid and that Khufu provided good food and clothing for his workers. According to Herodotus: “On the pyramid it is declared in Egyptian writing how much was spent on radishes and onions and leeks for the workmen, and if I rightly remember that which the interpreter said in reading to me this inscription, a sum of one thousand six hundred talents of silver was spent…”

  5. Experts have talked a lot about the methods by which stone blocks were raised into position, it is usually assumed that wooden and bronze levers were used to put the blocks into position. “This pyramid was made after the manner of steps which some called “rows” and others “bases”: and when they had first made it thus, they raised the remaining stones with machines made of short pieces of timber, raising them first from the ground to the first stage of the steps, and when the stone got up to this it was placed upon another machine standing on the first stage, and so from this it was drawn to the second upon another machine…” – describes Herodotus.

   6. About 600 years ago, beautiful smooth blocks known as Casing Stones covered the entire exterior of the pyramid, encasing the whole structure, before the Arabs began to tear the stones off. The ancient writer, Strabo, said: “It seemed like a building let down from heaven, untouched by human hands.”  It has been
calculated that the original pyramid with its casing stones would act like gigantic mirrors and reflect light so powerful that it would be visible from the moon as a shining star on earth. At the present, only a few of these are left in position on each side at the base.  One of the largest remaining Casing stones is nearly 5 feet high by 8 feet at the bottom, and weighs about 14 tons.

   7. There are three known chambers inside the Great Pyramid – King’s chamber, Queen’s chamber and unfinished chamber. A team of French Egyptologists (Gilles Dormion and Jean-Yves Verd’hurt) claims that an undiscovered room lies underneath the pyramid’s Queen’s Chamber and insists that it is the actual burial chamber for Khufu and not the one known as the King’s chamber. However, even those who believe that the
King’s chamber was never put to use believe that Khufu may have been buried elsewhere rather than in another, hidden chamber. Well, there are still lots of mysteries concerning Khufu’s burial to be.. or never to be revealed.
  

  8. One of the most mysterious parts of the Great Pyramid is the empty coffer in the King’s Chamber, it is made from a solid block of chocolate-colored granite and is even harder than the granite walls of the King’s Chamber. For thousands of years, researchers have wondered about its purpose. Ancient legend says that it
came from Atlantis or even from America.  It was never inscribed or decorated. Also, since it is too large to pass through the low passages leading into the King’s Chamber, it is considered to be placed in the chamber before the chamber was closed and passages were sealed

  9. The interior temperature of the Pyramid is constant and equals the average temperature of the earth, 20 Degrees Celsius (68 Degrees Fahrenheit).

  10. Another pleasant discovery in the Great Pyramid is a spectacular ancient cedar-wood boat, which was found sealed in a pit at the base of the Great pyramid. This boat was interred in pieces and has since been reassembled, restored and preserved in a climate controlled museum over the site of the original pit. The name
“Djedefre”,  who was Khufu’s son and successor, is found on some of the slabs of stone that sealed the pit, indicating that probably the boat was put there by Khufu’s son.

Wonders of the World

  Various lists of the Wonders of the World have been compiled from antiquity to the present day, to catalogue the world's most spectacular natural wonders and manmade structures.
       The Seven Wonders of the Ancient World is the first known list of the most remarkable creations of classical antiquity, and was based on guide-books popular among Hellenic sight-seers and only includes works located around the Mediterranean rim. The number seven was chosen because the Greeks believed it to be the representation of perfection and plenty. Many similar lists have been made.

                           Seven Wonders of the Ancient World

         The historian Herodotus (484 – ca. 425 BCE), and the scholar Callimachus of Cyrene (ca. 305 – 240 BCE) at the Museum of Alexandria, made early lists of seven wonders but their writings have not survived, except as references. The seven wonders included:

• Great Pyramid of Giza
• Hanging Gardens of Babylon
• Statue of Zeus at Olympia
• Temple of Artemis at Ephesus
• Mausoleum of Maussollos at Halicarnassus
• Colossus of Rhodes
• Lighthouse of Alexandria

       The earliest lists had the Ishtar Gate as the seventh wonder of the world instead of the Lighthouse of Alexandria.
        The list known today was compiled in the Middle Ages—by which time many of the sites were no longer in existence. Today, the only ancient world wonder that still exists is the Great Pyramid of Giza.