Columbia Encyclopedia
Search results
500 results found
quarrying
(Encyclopedia)quarrying, open, or surface, excavation of rock used for various purposes, including construction, ornamentation, road building, and as an industrial raw material. Rock that has been quarried is commo...dolmen
(Encyclopedia)dolmen dŏlˈmĕn, dōl– [key] [Breton,=stone table], burial chamber consisting of two or more upright stone slabs supporting a capstone or table, typical of the Neolithic period in Europe. See mega...Xi'an
(Encyclopedia)Xi'an shēˈänˈ, sēˈ– [key], city (1994 est. pop. 2,114,900), capital of Shaanxi prov., China, in the Wei River valley. Situated on the Longhai RR, China's principal east-west line, it is an imp...Old Man of the Mountain, in Islamic history
(Encyclopedia)Old Man of the Mountain, in Islamic history: see Assassin. ...Blarney
(Encyclopedia)Blarney, village, Co. Cork, SE Republic of Ireland. Those who kiss the Blarney Stone, placed in an almost inaccessible position near the top of the thick stone wall of the 15th-century castle, are sup...Decoration Day
(Encyclopedia)Decoration Day: see Memorial Day. ...Rushmore, Mount
(Encyclopedia)Rushmore, Mount: see Mount Rushmore National Memorial. ...Paleolithic period
(Encyclopedia)Paleolithic period pāˌlēəlĭthˈĭk, –lēō–, pălˌ– [key] or Old Stone Age, the earliest period of human development and the longest phase of mankind's history. It is approximately coexten...bluestone
(Encyclopedia)bluestone, common name for the blue, crystalline heptahydrate of cupric sulfate called chalcanthite, a minor ore of copper. It also refers to a fine-grained, light to dark colored blue-gray sandstone....Kaaba
(Encyclopedia)Kaaba or Caaba both: käˈbə or käˈəbə [key] [Arab.,=cube], the central, cubic, stone structure, covered by a black cloth, within the Great Mosque in Mecca, Saudi Arabia. The sacred nature of the...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
- Places +-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-