The term 'Large Container of Brass' can be solved by the 8-letter word 'Pentagon'. The Pentagon is a large building located in Arlington, Virginia, and is the headquarters of the United States Department of Defense. It is one of the world's largest office buildings, with five sides and five floors. The building is made of reinforced concrete and is surrounded by a large moat filled with water. The exterior walls are made of brass, giving it its name.