 Complete the following phrase:  Since 2000, the entire tower has been illuminated in a pink light on 1 October to highlight the beginning of National Breast Cancer Awareness Month. The tower has also had a variety of special lighting arrangements for Christmas since 1994. During New Years Eve, the tower lights up at midnight with a year number displayed on one side of the observatory to mark the arrival of the new year. Special Japanese events have also been cause to light the tower in several non-traditional ways. In 2002, alternating sections of the tower were lit blue to help celebrate the opening of the 