Answer :
Answer:
Washington Monument
Explanation:
The Washington Monument is one of the most important and famous monument in the United States of America. It was build within the National Mall at Washington D.C. in order to commemorate the first President of the United States, George Washington.
But this important monument along with many other important place on the USA are at a high risk of the flooding due to the rise in the sea levels in the near future.
According to a report by NASA, most of the USA's important and iconic landmark are at a high risk than before. The rising sea level, erosion of the coastal areas, heavy rains, increased flooding, global temperature rising are affecting and damaging these archeological structures and iconic landmarks.
So, the answer is 'Washington Monument'.