30,000 – 35,000 ft: Commercial airlines
29,035 ft: Mount Everest – Earth’s highest point
26,000 ft: Death Zone – Oxygen levels insufficient to sustain human life
22,595 ft: Ojos del Salada – Highest active volcano
18,000 ft: High clouds (Cirrus & Cirrocumulus) start forming
16,728 ft: La Rinconada, Peru – World’s highest human habitation
12,500 ft: Standard skydiving altitude
12,389 ft: Mount Fuji
2,717 ft: Burj Khalifa, Dubai – World’s tallest building
2,073 ft: Shanghai Tower
1,004 ft: The Shard – Europe’s tallest building
-3,182 ft: Bingham Canyon Mine – Deepest man-made open pit excavation
-6,000 ft: Depth of Grand Canyon
-10,000 ft: Cuvier’s Beaked Whales – Deepest diving mammals
-12,500 ft: Wreck of the RMS Titanic
-12,800 ft: Mponeng & TauTona Gold Mines – World’s deepest mines
-26,715 ft: Snailfish – Deepest dwelling fish
-30,000 ft: KTB Borehole – Scientific drilling project
-35,787 ft: Deepsea Challenger – Deepest solo submarine dive
-36,201 ft: Mariana Trench – Lowest known natural point on Earth
-37,318 ft: Sakhalin-I Project – Longest well in the world
-40,230 ft: Kola Borehole – Deepest artificial point on Earth
• Don't insult other visitors. Offensive comments will be deleted without warning.
• Comments are accepted in English only.
• No swearing words in comments, otherwise such comments will be censored.
• Your nickname and avatar are randomly selected. If you don't post comments for 7 days, they both are reset.
• To choose another avatar, click the ‘Random avatar’ link.
