Portugal (Overseas Territories) is 899 times larger than Maiduguri.
Area: 92,090 km2 World Factbook
Population: 10,813,834 (July 2014) World Factbook
Portugal, officially the Portuguese Republic, is a unitary semi-presidential republic. It is located in South-Western Europe, on the Iberian Peninsula, and it is the westernmost country of mainland Europe, being bordered by the Atlantic Ocean to the west and south and by Spain to the north and east. Wikipedia
Area: 102 km2 calculated
Maiduguri, also called Yerwa by its locals, is the capital and the largest city of Borno State in north-eastern Nigeria. It is popularly called "Home of Peace". The city sits along the seasonal Ngadda River which disappears into the Firki swamps in the areas around Lake Chad. Wikipedia