Reconstruction of the WTC, over the years....

September 2009:

Construction of the new One World Trade Center officially began around 2006.  Yet, the site still appeared as below in September '09:

September 2011: 

Discernible progress could be seen.:

 

Spring 2012:

Porto-potties being lowered from the top of the construction site!

 

"By Monday [4/30/12], the rising steel frame of One World Trade Center is expected to surpass the 1930s vintage skyscraper {i.e., Empire State Building], passing the title of tallest building in the city — and in the Western Hemisphere— to lower Manhattan....At 1,776-feet and 104 floors, the new tower will be 408 feet taller than the Twin Towers" (One World Trade Center Will Soon be West's Tallest Tower, Asbury Park Press, 4/27/12). 

September 2014:

9/11/15:

A Visit to the WTC and 911 Museum on 2/26/16 - 23rd anniversary of the 1993 attack on the WTC

Sistine Chapel images @ WTC (6/24/17)