Egypt is 5,141,046 times larger than Boston Common.
Area: 1,001,450 km2 World Factbook
Population: 86,895,099 (July 2014) World Factbook
Egypt, officially: the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia, via a land bridge formed by the Sinai Peninsula. Wikipedia
Area: 0 km2 calculated
Boston Common is a central public park in Boston, Massachusetts. It is sometimes erroneously referred to as the "Boston Commons". Dating from 1634, it is the oldest city park in the United States. Wikipedia