Across from the Stock Exchange stands a grand office building, constructed in 1914, that once served as the headquarters of JP Morgan. Its imposing presence has seen many historic events unfold on Wall Street.
One significant event etched into the building's history occurred on September 16, 1920. The Wall Street Bombing left its mark on this structure. Shrapnel from the explosion blasted several holes in the limestone facade. Interestingly, these holes remain visible today, offering a glimpse into the past for those who visit.
Source - https://en.wikipedia.org/wiki/23_Wall_Street