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7 secrets about Washington, DC landmarks you probably didn’t know

Washington, DC is home to America’s most historical landmarks. These landmarks attract thousands of visitors, but also have secrets and interesting backstories. A hidden crypt, a “whispering gallery,” and moon rocks can be found in DC. Visit Business Insider’s homepage for more stories. Following is a transcript of the video. […]
7 secrets about Washington, DC landmarks you probably didn’t know
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Secrets you didn’t know about 8 famous landmarks in Washington, DC

Washington, DC, is home to some of the country’s most famous buildings. Though the buildings receive thousands of visitors each year, some have little-known features inside and out. Moon rocks, secret crypts, and underground tunnels are the best-kept secrets in these popular tourist spots. Visit Business Insider’s homepage for more […]
Secrets you didn’t know about 8 famous landmarks in Washington, DC