"The WTC Cross" Poster. Two steel beams break off from the 67th floor of the World Trade Center on 9/11 and land upright in the rubble in the shape of a Cross. The Cross was found on Day 3 after the attacks by construction worker Frank Silecchia. This image of the Cross is widely considered the best ever taken in its original, organic state before time and rust covered the names scrawled into the steel by firefighters.