The building site was a real challenge, it was long and narrow, with immovable railroad tracks on both side, and very expensive because of the location. The solution was a building with a very narrow base, that expands out in a V-shape over the first 10 floors or so. The foundation piers are 16 feet across, poured solid concrete to bedrock. Even with that the engineers were concerned about swaying in the wind, so the building has a 250,000 gallon hydraulic damper at the top, a giant water tank filled with water to add weight and inertia to the building. Amazing engineering.
Would you feel comfortable working in this building?