The ninth stop on the Great Crash of 1929: Tour of the Financial District is at the epicenter of American finance - the intersection of Broad Street and Wall Street. At 23 Wall Street is "The Corner," the original home of JP Morgan Bank. In 1920, a carriage loaded with explosives was detonated in front of the building in an act of domestic terrorism. The pock marks from the explosion are still visible in the marble facade.