Twelve years later, New Yorkers are still discovering remnants of the attacks of Sept. 11, 2001.
What New York City police say was part of a landing gear from one of the planes hijacked and crashed on 9/11 was found wedged between two buildings a few blocks from the World Trade Center site. It was wedged between 51 Park Place and 50 Murray Street.
51 Park Place has been the site of a proposed Muslim Community Center, a project critics called the Ground Zero Mosque.
PHOTOS: Dust Messages: Notes from 9/11
Surveyors hired by one of the property owners were inspecting the buildings when they found the piece, which, police said, includes a "clearly visible Boeing identification number."
The site of the discovery is being treated like a crime scene and it will be up to the Office of the Chief Medical Examiner in New York to decide whether to search it for human remains.
Forensic scientists from the medical examiner's office have spent the past few weeks at a landfill on Staten Island sifting debris from the World Trade Center site. They've found a number of potential human remains they hope can ID the 41 percent of New York 9/11 victims who still have not been formally identified.