Seriously How do they keep those landmarks clean??
You have traveled many countries in the world. But have you ever wonder how those great landmarks, Liberty Statue, Eiffel Tower been cleaned? This card would give the answer to you.
Just in time to inspire some spring cleaning, mental_floss takes a look at how some of the world's most beloved landmarks keep their shiny exterior. From the annual scrubbing of the Eiffel Tower to the daring wash of Mount Rushmore, the intriguing list answers a question we may not have thought to ask, but nonetheless find quite interesting.
Check out the site above to see more information :)