Tareas

The Egyptian pyramids are ancient pyramid-shaped masonry structures located in Egypt.
There are 138 pyramids discovered in Egypt as of 2008. [1][2] Most were built as tombs for the country'sPharaohs and their consorts during the Old and Middle Kingdom periods. [3][4][5]
The earliest known Egyptian pyramids are found at Saqqara, northwest of Memphis. The earliest among these is the Pyramid ofDjoser (constructed 2630 BCE–2611 BCE), which was built during the third dynasty. This pyramid and its surrounding complex were designed by the architect Imhotep, and are generally considered to be theworld's oldest monumental structures constructed of dressed masonry. [6]
The estimate of the number of workers it took to build the pyramids has a wide range from a few thousand, twenty thousand,and up to 100,000.
The most famous Egyptian pyramids are those found at Giza, on the outskirts of Cairo. Several of the Giza pyramids are counted among the largest structures ever built. [7]
ThePyramid of Khufu at Giza is the largest Egyptian pyramid. It is the only one of the Seven Wonders of the Ancient World still in existence.

The Colosseum, or the Coliseum, originally the FlavianAmphitheatre (Latin: Amphitheatrum Flavium, Italian Anfiteatro Flavio or Colosseo), is an elliptical amphitheatre in the centre of the city of Rome, Italy, the largest ever built in the Roman Empire. It isconsidered one of the greatest works of Roman architecture and Roman engineering.
Occupying a site just east of the Roman Forum, its construction started in 72 AD[1] under the emperor Vespasian and wascompleted in 80 AD under Titus,[2] with further modifications being made during Domitian's reign (81–96).[3] The name "Amphitheatrum Flavium" derives from both Vespasian's and Titus's family name(Flavius, from the gens Flavia).
Capable of seating 50,000 spectators,[4][5] the Colosseum was used for gladiatorial contests and public spectacles such as mock sea battles, animal hunts, executions,...