The mystery surrounding whether they reached the summit of Mount Everest before their disappearance in 1924.
The legend and sightings of a mysterious creature believed to inhabit the Himalayas, including Mount Everest.
The unidentified body of a climber, known as "Green Boots," is used as a landmark by climbers on the northeast ridge of Mount Everest.
The disappearance of the prominent rock face feature on the southeast ridge of Mount Everest during the 2015 earthquake.
The cases of climbers who have gone missing on Mount Everest and their whereabouts remain unknown.
The preservation of bodies of climbers on Mount Everest due to extremely cold temperatures and challenging conditions.
The unexpected and deadly hailstorm that struck climbers on Mount Everest, resulting in several deaths.
The discovery of an oxygen mask on Mount Everest, raised questions about its origin and the climbers involved.
The presence of an ice axe near the summit of Mount Everest, with no known owner or explanation.
The ongoing debate and measurements to determine the exact height of Mount Everest, including its snow cap.