The Horta Quadrangle is the headquarters of the Wardens in New York City. Designed by Belgian architect Victor Horta, the Quadrangle (known as “HQ” by the New York Wardens) the building is outwardly home to a first-floor antiquities shop as well as a gentleperson’s club on the second through fourth floors. The building has three sub-levels, including a traditional basement and an auto-pool.