airy angles architecture atrium bright ceilings central circular cruise-liner cruise-ship curved curves decks ELEVATORS floating-staircase flooring floors height high interior leisure levels lifts light lines luxury multi-stories onboard open-space passengers perspectives piazza-style railing railings rails relaxation relaxing safety secure soaring space spacious staircases stairs style tourists transport travel views appearance broken construction damaged exterior external façade former city square former significant building front and back façades historic historical old open pedestrian space open space paved paved open pedestrian space piazza plaza propped propped up Remains remnants restored remnant ruins stone walls structure urban view walls