To meet the deadline, three thousand workers laboured on the new boulevard twenty-four hours a day. The rue de Rivoli was completed, and the new hotel opened in March 1855, in time to welcome guests to the Exposition. The junction was made between the rue de Rivoli and rue Saint-Antoine; in the process, Haussmann restyled the Place du Carrousel, opened up a new square, Place Saint-Germain l'Auxerrois facing the colonnade of the Louvre, and reorganized the space between the Hôtel de Ville and the place du Châtelet. Between the Hôtel and Ville and the Bastille square, he widened the rue Saint-Antoine; he was careful to save the historic Hôtel de Sully and Hôtel de Mayenne, but many other buildings, both medieval and modern, were knocked down to make room for the wider street, and several ancient, dark and narrow streets, rue de l'Arche-Marion, rue du Chevalier-le-Guet and rue des Mauvaises-Paroles, disappeared from the map.