A worker prepares rappelling lines at the top of the Washington Monument as inspections to the structure begin on September 27, 2011. Engineers planned to rappel down the 555-foot (170-meter) Washington Monument to assess damage from a rare 5.8-magnitude earthquake and storms that struck the U.S. capital in August. (Reuters/Kevin Lamarque)
Zoom

A worker prepares rappelling lines at the top of the Washington Monument as inspections to the structure begin on September 27, 2011. Engineers planned to rappel down the 555-foot (170-meter) Washington Monument to assess damage from a rare 5.8-magnitude earthquake and storms that struck the U.S. capital in August. (Reuters/Kevin Lamarque)

Source :

6Kevin Lamarque, Reuters, Architecture, Washington Monument, Washington, USA,