Landforms & Water
Longest River in the World: The Nile
From the sacred springs of Lake Victoria in East Africa to the glittering sands of Egypt’s Mediterranean delta, the Nile has woven its way through millennia of civilization.…
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Physical Geography
Explore Earth’s physical systems—from mountains and rivers to climate patterns and fragile ecosystems. This hub organizes our best guides to landforms and water, weather and climate, biodiversity, and today’s pressing environmental issues. Start here, then dive into focused subtopics or explore places by continent, country, and city.
Landforms & Water
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 the Gegham mountains. This…
Flora & Fauna
Spiders and Bed Bugs: Identification, Differences, and Control Measures
Spiders and bed bugs are two common pests found in households, each with distinct characteristics and effects on humans. While they share some similarities, such as causing bites…
Landforms & Water
Lake Geneva: History, Geography, and Highlights
Lake Geneva, or Lac Léman, is a substantial body of water situated on the northern side of the Alps, straddling the borders of Switzerland and France. Renowned as…
Landforms & Water
List of Lakes in Armenia: Locations, Sizes, and Provinces
Armenia, a country with rich geographical diversity, hosts a variety of lakes, ranging from vast bodies of water to smaller mountain lakes. The most prominent among them is…
Landforms & Water
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 Hrazdan River, it sits…
Landforms & Water
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 of Armenia. Established with…
Landforms & Water
Lake Sevan: Armenia’s Largest Lake
Lake Sevan spreads across a high basin in Armenia’s Gegharkunik Province, where mountain weather, medieval sites, fisheries, irrigation, and hydropower meet. Its size cannot be reduced to one…
Landforms & Water
Lake Lessing
Lake Lessing (Armenian: Լեսինգ (լիճ)) is a noteworthy natural lake situated in the Aragatsotn region of Armenia. Positioned on the eastern slope of the Aragats mountains, the lake…
Landforms & Water
Akhurian Reservoir
The Akhurian Reservoir, also known as Arpaçay Baraj Gölü in Turkish and Ախուրյանի ջրամբար in Armenian, is a significant hydrological feature located on the Akhurian River, marking the…