The five-story structure in Santa Marta was built in 1996 under the papacy of Pope John Paul II, providing more comfortable sleeping arrangements for cardinals during conclaves. Prior to its construction, papal electors slept “on cots in small rooms adjacent to the Sistine Chapel,” National Geographic reported.Following his death, the doors to Francis’s apartment were ceremonially closed with red ribbon and a wax seal.What happens now?A nine-day period of mourning, or novendiali, will follow the death of Pope Francis. The conclave begins 15 to 20 days after the pontiff’s death. Cardinals will flock to the Vatican to elect Pope Francis’s successor in a secretive voting process inside the Sistine Chapel. Following each voting session, the cardinals’ ballots are counted and burned.White smoke indicates that the next pope has been chosen, while black smoke indicates that voting must continue. Pope Francis’s successor will need two-thirds majority vote in order to be elected.What is in Vatican City?St. Peter’s Basilica, where Pope Francis’s funeral will take place, is a domed church in the heart of Vatican City with elements of Renaissance and Baroque styles. It was constructed between 1506 and 1626 and is one of Christianity’s holiest landmarks.Just outside of the Basilica is St. Peter’s Square, where Pope Francis made his final public appearance. The sprawling piazza was completed in 1667. At its center is the Vatican Obelisk, an ancient Egyptian obelisk that was transported to Rome in 37 AD. The Sistine Chapel, home to Michaelangelo’s famous ceiling frescoes, is located inside the Apostolic Palace. The Apostolic Palace also houses the papal apartments, which have served as the traditional residence of the pope since the 17th century. The Vatican museums, which receive six million visitors every year, are also inside the Palace.Black smoke billows out of the Sistine Chapel’s chimney during the March 2013 conclave, indicating a new pope had not yet been selected. Photo: Alessandra Benedetti/Corbis via Getty ImagesWhere does conclave voting take place?The Sistine Chapel is where conclave voting takes place.