Clinton and Russell was a well-known architectural firm founded in 1894 in New York City, United States. The firm was responsible for several New York City buildings, including some in Lower Manhattan.

The Park Avenue Armory, also known as the 7th Regiment Armory, is a historic armory for the U.S. Army National Guard at 643 Park Avenue in the Upper East Side neighborhood of Manhattan in New York City, United States. Designed in the Gothic Revival style by Charles Clinton for the 7th New York Militia Regiment, the Park Avenue Armory was completed in 1880, with two expansions in the early 20th century. The building and its interior are New York City designated landmarks, and the structure was made a National Historic Landmark in 1986. Since 2006, it has been the home of the Park Avenue Armory Conservancy, which leased the building for 99 years from the New York state government. The 53rd Digital Liaison Detachment of the New York Army National Guard, the Veterans of the 7th Regiment, the Knickerbocker Greys cadet corps, and the Lenox Hill Neighborhood House also occupy parts of the armory.