where  is the deepest point of water in the world?
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mariana trench in the pacific ocean
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It depends on what you mean by "outer atmosphere".  The deepest place in the ocean is in the Mariana Trench at 10,911 meters below sea level.  A commonly accepted limit for the Earth's atmosphere is 100 kilometers.  This gives a total of 110.911 kilometers or 68.92 miles.
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Regardless as to where? Mindanao Deeps (7mi straight down)\nLowest dry place - death valley\nLowest continental place - Bottom of the dead sea.\n\nThe marianas are in the pacific and the trench is part of the complex call the mindanao deeps.
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The Challenger Deep is the deepest known point in the oceans, 10,911 meters (35,797 feet) deep at its maximum\nSource(s):\nhttp://en.wikipedia.org/wiki/Challenger_Deep
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The Arctic. Its average depth is 3,407 feet.
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Lake Baikal is the largest (by volume), deepest and oldest freshwater lake in the world. A World Heritage Site, it lies in Southern Siberia in Russia, between Irkutsk Oblast to the northwest and Buryatia to the southeast, near the city of Irkutsk. The name derives from Tatar "Bai-Kul" - "rich lake". It is also known as the Blue Eye of Siberia. In Russian, it is called О́зеро Байка́л (Ozero Baykal), and in the Buryat and Mongol languages it is called Dalai-Nor, or "Sacred Sea".
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The world's deepest lake is Lake Baikal, in Siberia, Russia. The deepest point of the lake, the Olkhon Crevice, has a depth of 1,637 m (5,371 ft), of which 1,181 m (3,875 ft) are below sea level. It is also the oldest freshwater lake on Earth, having formed between 20 and 25 million years ago. Baikal also contains one-fifth of all the world’s fresh surface water! The lake is roughly crescent-shaped, 636 km (395  miles) long, with a surface area of 31,500 km² (12,200 miles²).
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(deepest oceans and seas)\ndot\n#1 Pacific Ocean (35,837 ft) (10,924 meters)\n#2 Atlantic Ocean (30,246 ft) (9,219 meters)\n#3 Indian Ocean (24,460 ft) (7,455 meters)\n#4 Caribbean Sea (22,788 ft) (6,946 meters)\n#5 Arctic Ocean (18,456 ft) (5,625 meters)\n#6 South China Sea (16,456 ft) (5,016 meters)\n#7 Bering Sea (15,659 ft) (4,773 meters)\n#8 Mediterranean Sea (15,197 ft) (4,632 meters)\n#9 Gulf of Mexico (12,425 ft) (3,787 meters)\n#10 Japan Sea (12,276 ft) (3,742 meters)
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Baikal is the largest (by volume), deepest and oldest freshwater lake in the world. It contains over 20% of the world's liquid fresh water and more than 90% of Russia's liquid fresh water. A World Heritage Site, it lies in Southern Siberia in Russia, between Irkutsk Oblast to the northwest and Buryatia to the southeast, near the city of Irkutsk. The name derives from Tatar "Bai-Kul" - "rich lake". It is also known as the Blue Eye of Siberia. In Russian, it is called О́зеро Байка́л (Ozero Baykal), and in the Buryat and Mongol languages it is called Dalai-Nor, or "Sacred Sea".
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The five largest lakes in the world by area in square miles:\n\nCaspian Sea Asia-Europe \n(salt water) 143,244 \n\nSuperior-North America  31,700  \n\nVictoria-Africa  26,828 \n\nAralb-Asia  24,904  \n\nHuron-North America  23,010  \n\nThe deepest lake in the world is Lake Baikal in Siberia.  Its deepest point is 1637 meters.  It holds 20% of the world's fresh surface water and is the world's largest freshwater lake by volume.
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Pacific Ocean - The deepest known point on Earth is at the bottom of the Mariana Trench, a depression in the floor of the western Pacific Ocean, just east of the Mariana Islands. \n\nThe Mariana Trench is 1,554 miles long and averages 44 miles wide. Within it, about 210 miles southwest of Guam, lies the deepest known point on Earth. Named the “Challenger Deep” for the British survey ship Challenger II that located it in 1951, this underwater gorge plunges to a depth of nearly 7 miles! It is deeper than Mt. Everest is tall.
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The Marianas Trench in the Pacific Ocean is the deepest known part of the ocean, at 35,798.6 ft
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the deepest part of the ocean.  The trench is 2,400 km/1,500 mi long and is situated 300 km/200 mi east of the Mariana Islands, in the northwestern Pacific Ocean
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The Marianas Trench.\nAt least that's the deeepest gorge.\nThe deepest depression may be the caldera at Yellowstone.
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Do you mean the Marianas Trench, the deepest trench in the world? It is close to the Philippine Islands, but closer to the Marianas islands.
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Currently, the deepest is approximately 6 miles (roughly 10km) - which is about 31000ft.  \n\nRussian scientists dug the deepest hole on the planet in Siberia which bottomed out at about 7.5 miles (12 kilometers) below the surface.
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The deepest river would be the Nile in East Africa.\nThe river with most volume of water would be Amazon.