Corvin Crystal Tower building the second phase of the Corvin-quarter realized one of the four office towers. Iconic building: diamond-shaped, with mathematical precision dimensioned facade glass cover has resulted in a unique architectural shapes. The building is unique not only in appearance, since almost all of the office provides unique views of the Corvin Promenade. office spaces located on the top floors of the glass-covered Corvin offer stunning panoramic views of the office for employees and guests. Corvin Crystal Tower 'A' category office building, two separate staircase, five offices and a parking level provides.