Washington Monument is an obelisk on the National Mall in Washington, D.C., Columbia. The monument was built in honor of George Washington, once commander-in-chief of the Continental Army (1775-1784) in the American Revolutionary War and the first president of the United States (1789-1797). It is located east of the Reflecting Pool, as is The Lincoln Memorial; the monument is made up of granite, marble, and bluestone gneiss. It is the world’s highest mostly stone structure as well as the highest obelisk in the world, with a height of 554 feet 7+11/32 in (169.046 meters) tall, according to the U.S. National Geodetic Survey (measured 2013-14) or 555 feet 5+1/8 inches (it 169.294 meters) tall, as per the National Park Service (measured 1884). It is the most significant monumental structure in the world when all of them are located above entrances for pedestrians. It is overtaking Cologne Cathedral. Cologne Cathedral was the highest structure in the world from 1884-1889, the year after the Eiffel Tower in Paris took over the crown.
The building of the memorial for the president was initiated in 1848. The project was stopped for 23 consecutive years between 1854 and 1877 because of insufficient money and a fight to control the Washington National Monument Society and the American Civil War. While the stone structure was built in 1884, the internal construction of the ironwork, the Knoll, and the stone installation were not completed until 1888. The difference in the shading of the marble, which is visible at a distance of 150 feet (46 m) or 27% higher, shows where construction was cut off and then restarted using marble from a different source. The initial design was drawn by Robert Mills (1781-1855) of South Carolina, but he didn’t include his colonnade due to the shortage of funds and proceeded just with a monument obelisk. It was initially laid on the 4th of July, 1848. The first brick was placed on the stump that was not finished on the 7th of August 1880. The capstone was laid on the 6th of December, 1884. The completed structure was officially dedicated on the 21st of February, 1885, and was formally inaugurated on September 9th October 1888.
Washington Monument Washington Monument is a hollow Egyptian-style stone obelisk with a 500-foot (152.4 meters) tall column topped with a 55-foot (16.8 meters) tall pyramid. The monument’s walls have a thickness of fifteen inches (4.6 m) tall at its base and one-and-a-half feet (0.46 m) tall at its highest point. The marble pyramid has thin walls, just 7 inches (18 centimeters) thick. It is which are supported by six arches. With two between opposing walls at the center of the pyramid. There are also four smaller arches in the corners. The top of the pyramidion has an enormous marble capstone with an aluminum pyramid at its apex and inscribed lines on the four sides. The lower 150 feet (45.7 meters) wall, which was constructed in the initial phase between 1848 and 1954, consists of bluestone gneiss stones (not a stone that was finished) joined by a substantial quantity of mortar and an exterior of semi-finished stone stones that are about 1+1/4 feet (0.4 meters) thick. The upper part of 350 feet (106.7 meters) wall, built during the second stage of construction between 1880 and 1884, consists of finished stone surfaces of marble, and the other half extends into the walls and is partially covered by granite slabs that have been finished.
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