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Washington Monument Closed
The Washington Monument is closed for repairs due to an earthquake on August 23, 2011. More »
Ranger Journal
About This BlogExplore the history, culture, science, nature, architecture, and stories that link the iconic spaces in the National Mall and Memorial Parks to our nation and its people. The articles collected here are produced by NPS staff at the National Mall and Memorial Parks. Acid Rain's Slow Dissolve
May 22, 2012
Remember acid rain? Although pollution levels have improved, it is still here, and you can see evidence of acid rain’s effects in several spots on the National Mall. |
Did You Know?
The original gift of Cherry Trees from Japan in 1910 had to be destroyed due to disease and infestation. There was an additional gift made two years later that became the basis for the trees we still have today. More...