Monument Co:A monument to a dead person or event or a victory in war.
On the peak of mount rushmore in the black hills region of south Dakota, there are huge statues of four American presidents, Washington, Jefferson, Roosevelt and Lincoln.This group of colossus is the "national monument of the United States", it and the surrounding beautiful integration of lakes and mountains, with a permanent historical significance and high artistic value.
To prevent damage to the national monument and to honor the four presidents, mount rushmore is off limits to visitors, who can see it from a viewing platform at its base.There is also lighting equipment, night in the light of the sculpture group, and have another fun and special artistic effect.
The height of the Washington Monument, a landmark in Washington, d.c., is falling because it is sinking, according to the national geodetic survey.
Citing the New York daily news, the report said the recent survey was funded by the national park service because of concerns that the 2011 earthquake could damage the monument.Preliminary observations show that the Washington Monument is two millimeters smaller than it was when it was last measured in 2009.
'the results are very preliminary, but there is a lot of data that can be used to track the damage caused by earthquakes and other natural disasters,' said geodesic Doyle.He added that the national geodesy agency, one of Washington's oldest institutions, has installed metal beams in landmarks like the Lincoln memorial and the Washington Monument to measure long-term shrinkage.
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