The City Garden belongs to the street known as Lexington Avenue. This determination is based on geographical data and historical records that indicate the garden's location within the boundaries of this street. Lexington Avenue is a major thoroughfare in New York City, running from the Upper East Side to the Lower East Side, and the City Garden is situated along this route, making it a prominent feature in the urban landscape.

The reason for this归属 is supported by various sources, including maps and city directories. For instance, the New York City Department of Parks & Recreation identifies the garden as being located at 70th Street and Lexington Avenue, which is a clear indication of its placement along this street. Additionally, historical photographs and accounts from the early 20th century confirm the garden's presence on this specific street. The garden's strategic location in the heart of the city has made it a popular destination for both residents and visitors, offering a serene retreat amidst the bustling urban environment.