Sydney, Australia (c)Giovanni GagliardiSydney, Australia. Panoramic aerial view of city skyline and famous harbor area.Swimmer in a pool along the ocean with waves crushingSide view of Sydney Harbour Bridge at dusk from Walsh Bay(c)Giovanni GagliardiSYDNEY - OCTOBER 2015: City buildings on a beautiful sunny day. The city attracts 20 million people annually.SYDNEY, AUSTRALIA - AUGUST 20, 2018: Aerial view of Sydney Opera House on a beautiful sunny afternoonSYDNEY, AUSTRALIA - AUGUST 18, 2018: Sydney Luna Park is a major attraction in the harbourside suburb of Milsons Point, view at night