The Ultimate Casino Guide has various top ten lists. Here is their list of the ten most elegant casinos in alphabetical order.
50 St. James, London, England
Atalantis at Paradise Island, Nassau, Bahamas
Casino Baden-Baden, Germany
Casino Bellevue Marienbad, Czech Republic
Casino de Montreal, Montreal Quebec
Le Casino, Monte Carlo
St. James Club, Antigua
Taleon Club, Saint Petersburg, Russia
Venetian, Las Vegas, Nevada