A new bridge over the Seine, the modern Pont de la Concorde, which had been started under Louis XVI, was completed in 1792. Other landmarks were converted to new purposes: the Panthéon was transformed from a church into a mausoleum for notable Frenchmen, the Louvre became a museum, and the Palais-Bourbon, a former residence of the royal family, became the home of the National Assembly. The two first covered commercial streets in Paris, the Passage du Caire and the Passage des Panoramas, were opened in 1799.