Trump Tower is the 57th tallest building in New York City. The tower is a reinforced concrete, shear-wall core structure and was the tallest structure of this type in New York City when completed. A concrete hat-truss at the top of the building ties exterior columns with the concrete core. This increases the effective dimensions of the core to that of the building in order to resist the overturning of lateral forces (wind, minor earthquakes, and impacts perpendicular to the building’s height). A similar structure was used for Trump World Tower