Britain's Queen Elizabeth II said here Tuesday that 'the achievements of the United Nations are remarkable.' The 84-year-old British monarch made the statement in addressing the UN General Assembly for the second time in her reign. She made first speech at the General Assembly in 1957, when the UN was all of 12 years old, and when she was a mere four years into her long reign as queen. The queen and her husband, Prince Philip, were greeted by UN Secretary-General Ban Ki-moon and President of the General Assembly Ali Treki and their wives upon her arrival at the UN Headquarters in New York. 