The Palacio de la Legislatura de la Ciudad de Buenos Aires (English: Palace of the Buenos Aires City Legislature) houses the Government of the City of Buenos Aires, Argentina. It is an architectural landmark in the city's Montserrat district, situated in a triangular block bounded by the streets Calle Hipólito Yrigoyen, Avenida Presidente Julio Argentino Roca and Calle Perú.[1][2] Built of grey granite, it has a Neoclassical design.[3] The building is open to the public on week-days only.[1] The building contains the Esteban Echeverría Library, Salon Rosado (also known as the Salon Eva Perón), and a carillon which, when it was installed in 1930, was the largest in South America.