In the dead of the night, when the wind blows past the newly erected One World Trade Center, it emits an eerie, low hum like the chorus of 2,996 ghosts singing a funeral dirge. Writes Kenny Cummings on TribecaCitizen.com: “I live a couple of blocks from the tower, and first heard this very eerie sound during Hurricane Sandy last year. I’ve heard it only once afterwards, sometime last winter. I assumed once the building’s framework and windows went in, the airflow would be redirected. At 3:15 a.m. Wednesday morning, I awoke to the sound. It was slightly different in timbre, with two tones this time. I couldn’t be sure what it was at first, but after a moment I realized it was the Trade Center. Outside it was raining but the trees were calm. I can only imagine at that height the weather is different. I’m sure all of downtown hears this—it’s unmistakable and very chilling. I had to get up and record it. [You can hear it especially well around :20.] It seemed to calm down about 5 a.m.” (via Gawker)