There is no definitive answer to this question as it depends on a number of factors, including the definition of 'highest altitude'. For example, if you are referring to the highest point on Earth's surface, this is Mount Everest, which has an altitude of 8,848 metres (29,029 feet). However, if you are referring to the highest altitude ever reached by a human, this is 10,908 metres (35,787 feet), which was accomplished by Felix Baumgartner during a skydive from a helium balloon in 2012.
The layer that reaches the highest altitude in the Earth's atmosphere is the exosphere. It extends from about 700 km (440 miles) above the Earth's surface and gradually transitions into space.
Mt Everest is 8,840 metres or 29,000 feet high above sea level.
The highest altitude of the Moon in the sky, known as its culmination, occurs when it reaches its highest point in the sky relative to an observer's location. This can vary based on the observer's latitude and the Moon's position in its orbit. At the equator, the Moon can reach an altitude of nearly 90 degrees, while at higher latitudes, its maximum altitude will be lower. The Moon's position changes throughout the month due to its orbit around Earth, affecting its highest point in the sky at any given time.
The height of Everest is 29,035 ft above sea level.
The highest altitude record for a manned air balloon is 113,740 feet (34,668 meters), achieved by Vicenç Fargas and Lluis Llavina in March 2018.
The bar-headed goose flys at the highest altitude and reaches the highest altitude of any animal.
La Rinconada, Peru has the highest altitude in the world at 5,099 meters.
Tibet
It is not, the highest altitude above Sea Level is achieved by the summit of Mt. Everest.
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Troposphere
wenchuan , founded in 1955 in Tibet at an altitude of 5100m.
Ashkabad is at the highest altitude on 741m Riyadh is on 650/620 Baghdad at 38 unsure of Beijing
The highest peak in Patagonia is Mount San Valentín, which reaches an altitude of 4,058 meters (13,313 feet) above sea level.
The average altitude of the highest peak in Hawaii, Mauna Kea, is approximately 13,796 feet above sea level.
4409ft
1,344 m