Alcoa on Twitter: "A ceremony marks completed maintenance of the Washington Monument in 1934; the tip is made of Alcoa #aluminum. #TBT https://t.co/sPGiuu5h8g" / Twitter
Scaling the Washington Monument Twice in a Century | NIST
A Spectacular Bolt of Lightning Struck the Washington Monument, Temporarily Closing the Famed Obelisk to Visitors
DVIDS - Images - Lantern Slide 20: Capstone and aluminum tip of the Washington Monument. [Image 4 of 20]
Washington Monument Visitor Tips - YouTube
Engineers prep inspection atop Washington Monument | Archives | enewscourier.com
George Washington Monument Apex - Our Lost Founding
A Precious Tip - Twelve Mile Circle - An Appreciation of Unusual Places
Washington Monument. Horydczak on top of Washington Monument I | Library of Congress