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Washington Monument
The Washington Monument is an obelisk on the National Mall in Washington, D.C., built to commemorate George Washington, a Founding Fathers of the United States, Founding Father of the United States, victorious commander-in-chief of the Continental Army from 1775 to 1783 in the American Revolutionary War, and the first president of the United States from 1789 to 1797. Standing east of the Lincoln Memorial Reflecting Pool, Reflecting Pool and the Lincoln Memorial, the monument is made of Gneiss, bluestone gneiss for the foundation and of granite for the construction. The outside facing consists, due to the interrupted building process, of three different kinds of white marble: in the lower third, marble from Baltimore County, Maryland, followed by a narrow zone of marble from Sheffield, Berkshire County, Massachusetts, and, in the upper part, the so-called Cockeysville Marble. Both "Maryland Marbles" came from the "lost" Irish Quarry Town of "New Texas". It is both the world's tall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Mall
The National Mall is a Landscape architecture, landscaped park near the Downtown, Washington, D.C., downtown area of Washington, D.C., the capital city of the United States. It contains and borders a number of museums of the Smithsonian Institution, art galleries, cultural institutions, and various memorials, sculptures, and statues. It is administered by the National Park Service (NPS) of the United States Department of the Interior as part of the National Mall and Memorial Parks unit of the List of areas in the United States National Park System, National Park System. The park receives approximately 24 million visitors each year. Designed by Pierre L'Enfant, the "Grand Avenue" or Mall was to be a democratic and egalitarian space—unlike palace gardens, such as those at Versailles in France, that were paid for by the people but reserved for the use of a privileged few. The core area of the National Mall extends between the United States Capitol grounds to the east and the Wash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lincoln Memorial Reflecting Pool
The Lincoln Memorial Reflecting Pool is the largest of the many reflecting pools in Washington, D.C.. It is a rectangular pool located on the National Mall, directly east of the Lincoln Memorial, with the World War II Memorial and Washington Monument to the east of the reflecting pool. Part of the iconic image of Washington, D.C., the reflecting pool hosts many of the 24 million visitors who visit the National Mall annually. It is lined by walking paths and shade trees on both sides. Depending on the viewer's vantage point, it dramatically reflects the Washington Monument, the Lincoln Memorial, the Mall's trees, and the expansive sky. Description The Lincoln Memorial Reflecting Pool was designed by Henry Bacon, and was constructed in 1922 and 1923, following the dedication of the Lincoln Memorial. It is approximately long and wide. The perimeter of the pool is therefore around. It has a depth of approximately on the sides and in the center. It holds approximately of w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juche Tower
The Juche Tower (more formally, the Tower of the Juche Idea), completed in 1982, is a monument in Pyongyang, the capital of North Korea, and is named after the ideology of ''Juche'' introduced by the country's first leader, Kim Il Sung. Background The Juche Tower is situated on the east bank of the River Taedong, directly opposite Kim Il Sung Square on the west bank. It was built to commemorate Kim Il Sung's 70th birthday. Although his son and successor Kim Jong Il is officially credited as its designer, interviews with North Korean former officials contradict this assertion. The architectural style of the Tower is inspired by stone pagodas of premodern Korea. The structure is a four-sided tapering spirethe tallest in granitecontaining 25,550 blocks (365 × 70: one for each day of Kim Il Sung's life, excluding supplementary days for leap years), dressed in white stone with seventy dividers and capped with a -high 45-ton illuminated metal torch. The torch on top ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightning Rod
A lightning rod or lightning conductor (British English) is a metal rod mounted on a structure and intended to protect the structure from a lightning strike. If lightning hits the structure, it is most likely to strike the rod and be conducted to ground through a wire, rather than passing through the structure, where it could start a fire or even cause electrocution. Lightning rods are also called finials, air terminals, or strike termination devices. In a lightning protection system, a lightning rod is a single component of the system. The lightning rod requires a connection to the earth to perform its protective function. Lightning rods come in many different forms, including hollow, solid, pointed, rounded, flat strips, or even bristle brush-like. The main attribute common to all lightning rods is that they are all made of conductive materials, such as copper and aluminum. Copper and its alloys are the most common materials used in lightning protection. History The first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Council On Tall Buildings And Urban Habitat
The Council on Tall Buildings and Urban Habitat (CTBUH) is an international body in the field of tall buildings, including skyscrapers, and Sustainable design, sustainable urban design. A non-profit organization based at the Monroe Building in Chicago, Illinois, United States, the CTBUH announces the title of "The World's Tallest Building" and is widely considered to be an authority on the official height of tall buildings. Its stated mission is to study and report "on all aspects of the planning, design, and construction of tall buildings." The CTBUH was founded at Lehigh University in Bethlehem, Pennsylvania in 1969 by Lynn S. Beedle, where its office remained until October 2003 when it relocated to the Illinois Institute of Technology in Chicago. Ranking tall buildings The CTBUH ranks the height of buildings using three different methods: #Height to architectural top: This is the main criterion under which the CTBUH ranks the height of buildings. Heights are measured from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buttress
A buttress is an architectural structure built against or projecting from a wall which serves to support or reinforce the wall. Buttresses are fairly common on more ancient (typically Gothic) buildings, as a means of providing support to act against the lateral (sideways) forces arising out of inadequately braced roof structures. The term ''counterfort'' can be synonymous with buttress and is often used when referring to dams, retaining walls and other structures holding back earth. Early examples of buttresses are found on the Eanna Temple (ancient Uruk), dating to as early as the 4th millennium BC. Terminology In addition to flying and ordinary buttresses, brick and masonry buttresses that support wall corners can be classified according to their ground plan. A clasping or clamped buttress has an L-shaped ground plan surrounding the corner, an angled buttress has two buttresses meeting at the corner, a setback buttress is similar to an angled buttress but the buttresses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knoll
In geography, knoll is another term for a knowe or hillock, a small, low, round natural hill or mound. Knoll may also refer to: Places * Knoll Camp, site of an Iron Age hill fort Hampshire, England, United Kingdom * Knoll Lake, Leonard Canyon, Arizona, United States * The Knoll, a knoll on Ross Island, near Antarctica * The Knoll, an estate in Hove, England, United Kingdom, (see Hangleton) * Lambs Knoll, Utah, USA Brands and enterprises * Knoll (company), an industrial design and office furniture manufacturing company * Knoll Pharmaceuticals, a German drug development company taken over by Abbott Laboratories in 2002 Other uses * Knoll (oceanography), an underwater geological feature * Knoll (surname) * Knolls Atomic Power Laboratory, a US government research and development facility * Knoll, a part of a ski jumping hill slope between the take-off and the landing zone See also * Grassy Knoll (other) * Green Knowe * Greenknowe Tower Greenknowe Tower is a 16th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Geodetic Survey
The National Geodetic Survey (NGS) is a List of federal agencies in the United States, United States federal agency based in Washington, D.C. that defines and manages a national geographic coordinate system, coordinate system, providing the foundation for transportation and communication, mapping and charting, and a large number of science and engineering applications. Since its founding in 1970, it has been part of the National Oceanic and Atmospheric Administration (NOAA), a division within the United States Department of Commerce, Department of Commerce. History The National Geodetic Survey's history and heritage are intertwined with those of other NOAA offices. It traces its history to the Survey of the Coast, which was formed in 1807 as the first scientific agency of the Federal government of the United States, U.S. federal government. It became the United States Coast Survey in 1836 and the United States Coast and Geodetic Survey in 1878, the latter name change refle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cockeysville Marble
The Cockeysville Marble is a Precambrian, Cambrian, or Ordovician marble formation in Baltimore, Carroll, Harford and Howard Counties, Maryland. It is described as a predominantly Dolomite (rock), metadolomite, calc-schist, and calcite marble Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO3) or Dolomite (mineral), dolomite (CaMg(CO3)2) that have recrystallized under the influence of heat and pressure. It has a crystalline texture, and is ty ..., with calc-gneiss and calc-silicate marble being widespread but minor.''Geologic Map of Maryland'', 1968. Cleaves, E. T., Edwards, J. Jr., and Glaser, J. D. Maryland Geological Survey. Scale 1:250,000. The extent of this formation was originally mapped in 1892 within Baltimore County. Quarrying The Cockeysville Marble has been quarried in Beaver Dam, Maryland, Beaver Dam within Cockeysville and other locations in Maryland. A historical account is given in ''Maryland Geological Survey Vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berkshire County
Berkshire County (pronounced ) is the westernmost county in the U.S. state of Massachusetts. As of the 2020 census, the population was 129,026. Its largest city and traditional county seat is Pittsfield. The county was founded in 1761. The Berkshire Hills are centered on Berkshire County. Residents are known as Berkshirites. It exists today only as a historical geographic region, and has no county government, with the exception of the retirement board for former county workers, and the offices of the sheriff and the registrar of deeds. Law and government Of the fourteen Massachusetts counties, Berkshire County is one of eight that exists today only as a historical geographic region; it has limited county government. Berkshire County government was abolished effective July 1, 2000. Most former county functions were assumed by state agencies, and there is no county council or commission. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore County
Baltimore County ( , locally: or ) is the third-most populous county in the U.S. state of Maryland. The county is part of the Central Maryland region of the state. Baltimore County partly surrounds but does not include the independent city of Baltimore. It is part of the Northeast megalopolis, which stretches from Northern Virginia in the south to Boston in the north and includes major American population centers, including New York City and Philadelphia. Major economic sectors in the county include education, government, and health care. As of the 2020 census, the population was 854,535. The county is home to several universities, including Goucher College, Stevenson University, Towson University, and University of Maryland, Baltimore County. History 17th century The name "Baltimore" derives from Cecil Calvert, 2nd Baron Baltimore (1605–1675), proprietor of the colonial-era Province of Maryland, and the town of Baltimore in County Cork, Ireland. The earliest known docum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
