Rivers
Longest River in the World: The Nile
From East Africa’s lake-fed headwaters to Egypt’s Mediterranean delta, the Nile connects contrasting landscapes and societies. Understanding its length means separating one continuous river…
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Physical geography
Land, water and the natural processes that shape Earth.
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Lake Akna (Kotayk) · Lakes
Lake Akna (Kotayk)
Lake Akna (Armenian: Ակնա;) is a crater lake situated in the eastern part of the Kotayk Province in Armenia, lying within the boundaries of…
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Ecosystems & wildlife
Spiders and Bed Bugs: Identification, Differences, and Control Measures
Spiders and bed bugs can turn up in the same home, but they have very different ways of life. Bed bugs feed on blood,…
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Switzerland · Lakes
Lake Geneva: France–Switzerland Map and Rhône Route
Lake Geneva connects Alpine river valleys, French waterfront towns and Swiss cities, but its name can make the geography seem simpler than it is.…
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Armenia · Lakes
List of Lakes in Armenia: Locations, Sizes, and Provinces
Lake Sevan is Armenia's largest lake. In Gegharkunik Province, it is much larger than the country's other lakes and reservoirs. Armenia also has high-mountain…
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Yerevan Lake · Lakes
Yerevan Lake: Engineering and Urban Hydrology
Yerevan Lake (Երևանյան լիճ, Yerevanyan lich) is the capital’s artificial reservoir tucked between Malatia-Sebastia and Shengavit districts. Built in the 1960s to regulate the…
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Landforms
Vorotan Cascade
The Vorotan Cascade, also known as the ContourGlobal Hydro Cascade, is a significant hydroelectric complex situated on the Vorotan River in the Syunik Province…
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Armenia · Lakes
Lake Sevan: Armenia’s Largest Lake
Explore Lake Sevan’s changing geography and choose a realistic peninsula, western-shore or overnight visit, with current monitoring data and practical safety checks.
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Lake Lessing · Lakes
Lake Lessing
Lake Lessing (Լեսինգ) is a small mountain lake on the northeastern slope of Mount Aragats in Armenia’s Aragatsotn Province. The Hrazdan basin-management plan adopted…
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Armenia · Lakes
Akhurian Reservoir
Akhurian Reservoir is an artificial reservoir on the Akhurian River along the border between Armenia and Türkiye (Turkey). It is known as Arpaçay Baraj…
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Antarctica · Mountains
Mount Vinson: Highest Mountain in Antarctica
Mount Vinson is Antarctica’s highest mountain, reaching 16,050 feet (4,892 meters) above sea level. It stands in the Vinson Massif of the Sentinel Range,…
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Seas & oceans
Indian Ocean: The Only Ocean Named After a Country
The Indian Ocean’s name connects a familiar country with a much older geographical tradition. Understanding that distinction explains why the ocean is associated with…
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