UN General Assembly President Mogens Lykketoft (left) and UN

RUMSEY PLAYFIELD, CENTRAL PARK, NEW YORK, UNITED STATES - 2015/10/24: UN General Assembly President Mogens Lykketoft (left) and UN Secretary-General Ban Ki-moon (right) sit side-by-side at the unveiling of Cristobal Gabarron's "Enlightened Universe." To commemorate the 70th anniversary of the United Nations Charter, United Nations and New York City officials joined to inaugurate the opening of Cristobal Gabarron's sculptural installation titled "Enlightened Universe:" a reflective metal sphere surrounded by an overlapping ring of brightly-colored life-size figures holding hands. (Photo by Albin Lohr-Jones/Pacific Press/LightRocket via Getty Images)