Architect John McComb, who had designed Castle Clinton in Battery Park, joined forces with Joseph Francois Mangin, an emigré architect from France, to win the competition to design a new home for the city government. McComb and Mangin eschewed the standard English forms and simple materials that had until then defined the architecture of the new republic. Instead, their design referenced French sources reflecting post-revolutionary politics City Hall Park has recently undergone extensive remodeling which created an open space with a nineteenth-century character. The elaborate tiled fountain and gaslights at the center of the park are reproductions of the park's mid-nineteenth-century fixtures.