Marvels of Europe: Eiffel Tower, Leaning Tower of Pisa, Hagia Sophia

1. ,,Maths in buildings” Famous buildings in Europe

2. Famous buildings in Europe "The Eiffel Tower “ Paris, France Nesrin- 6 grade • The Eiffel Tower weighs 10,000 tons. • There are 5 billion lights on the Eiffel Tower. • Construction of the Eiffel Tower cost 7,799,401.31 French gold francs in 1889, or about $1.5 million. • The Eiffel Tower is 1,063 feet (324 meters) tall, including the antenna at the top. Without the antenna, it is 984 feet (300 m).

3. Eiffel Tower facts Aycha- 7 grade • The tower was built to sway slightly in the wind, but the sun affects the tower more. As the sun-facing side of the tower heats up, the top moves as much as 7 inches (18 centimeters) away from the sun. • The sun also causes the tower to grow about 6 inches. • The first platform is 190 feet above the ground; the second platform is 376 feet, and the third platform is almost 900 feet up.

4. Eiffel Tower facts Emirkan- 5grade

5. Eiffel Tower facts Ahmed- 7grade

6. Famous buildings in Europe "Leaning Tower of Pisa"Pisa, Italy • The Leaning Tower of Pisa is the campanile, or freestanding bell tower, of the cathedral of the Italian city of Pisa, known worldwide for its nearly four-degree lean, the result of an unstable foundation. Ayberk- 6 grade

7. "Leaning Tower of Pisa“- Facts • The height of the tower is 55.86 metres (183.27 feet) from the ground on the low side and 56.67 metres (185.93 feet) on the high side. • The width of the walls at the base is 2.44 m (8 ft 0.06 in). • The tower has 296 or 294 steps; the seventh floor has two fewer steps on the north-facing staircase.

8. "Leaning Tower of Pisa“ - changes in leainigover the years Eray- 5 grade

9. "Leaning Tower of Pisa“- Facts One different point of view  • Its weight is estimated at 14,500 metric tons (16,000 short tons).

10. "Leaning Tower of Pisa“- Facts In 1990 the tower leaned at an angle of 5.5 degrees, but following remedial work between 1993 and 2001 this was reduced to 3.97 degrees. It lost a further 4 cm of tilt in the two decades to 2018. Nehrinaz- 5 grade Remzie- 5grade

11. Famous buildings in Europe "Hagia Sophia (Church of the Holy Wisdom)"Istanbul, Turkey • St. Sofia was built in537 during the heyday of Byzantine art. • It has been built for only six years, and for almost a millennium it is the largest church in the world. • After the conquest of the city by the Ottoman Empire, the cathedral was transformed into a mosque, and in 1935has been declared a museum. • Fifty years later, in 1985, it was selected as a UNESCO World Heritage Site Seray- 6 grade

12. "Hagia Sophia (Church of the Holy Wisdom)“-Facts • Even today, the magnificent dome strikes with its grand dimensions - 55m highand the diameter of about 30 m. Rafet- 6 grade

13. "Hagia Sophia (Church of the Holy Wisdom)“-Facts • The largest columns in the temple are of granite and each weighs about 70 tons. • They are 24 m high and 1.5 m in diameter. The central dome in its highest part is 55 m. • And is placed on 40 arched windows. Ali- 6 grade