Fifteen years after terrorists took down the Twin Towers, Fox News Channel's Jon Scott investigates the amazing transformation of Lower Manhattan.

Reporting for "Happening Now," Scott takes a hard look at the rebirth of Ground Zero and the surrounding neighborhood, including what remains to be accomplished.

Don't miss this compelling report, airing on Fox News Channel Friday at 11 a.m. and 1 p.m. ET and again Sunday at 10 a.m. ET.