Sketches of Flight 93 memorial released

SHANKSVILLE, Penn.

The memorial is set to be dedicated in time for this fall's September 11th attacks anniversary.

A close-up image of the drawings reveal a pair of white marble walls framing the entrance to a walkway. Another sketch shows an open-air concrete entrance to the memorial.

United Airlines Flight 93 was en route to San Francisco from Newark, New Jersey when it crashed in an open field during an attempted terrorist hijacking.

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