The Perelman Center is located on the northeast corner of the World Trade Center complex in Manhattan. The 42-m-high, cube-shaped building features a one-of-a-kind translucent glass façade made of Portuguese marble. During the day, the façade appears a solid stone while at night, the façade is lit from within, emitting a warm glow shining at night that is visible from afar. The architect's design concept features a special arrangement of the façade units; all four sides of the cube should look similar in the end. Starting vertically from the center, stone panels are installed that have a stronger marbling and are therefore darker in colour. These panels are followed by façade units with a less pronounced veining that is gradually increasing again towards the outer edges of the building.