How large is the memorial that forms the boundary of Constitution Gardens on the west  ?
Constitution Gardens Constitution Gardens is a park area in Washington, D.C., United States, located within the boundaries of the National Mall. The 50 acre park is bounded on the west by the Vietnam Veterans Memorial, on the east by 17th St NW, on the north by Constitution Avenue, and on the south by the Reflecting Pool. Constitution Gardens has a small pond, which contains an island open to pedestrians.
Western Avenue (Washington, D.C.) Western Avenue is one of three boundary streets between Washington, D.C., and the state of Maryland. It follows a southwest-to-northeast line, beginning at Westmoreland Circle in the south and ending at Oregon Avenue NW in the north. It is roughly 3.5 mi in length. First proposed in 1893, it was constructed somewhat fitfully from about 1900 to 1931.