1. Las Vegas – Christmas is all about indulgence and treating yourself and your family, and what better place for this than the city of over the top luxury and entertainment that is Las Vegas. There are a number of impressive hotels that go all out for the Christmas and New Year period with some visually stunning decorations, and this time of year you can also get some great bargains as there is heavy competition among hotels to secure Christmas bookings. The Mirage is one of the biggest luxury hotels, and the massive aquarium in the lobby will take your breath away. It is also a casino and has its own shows such as the very popular Cirque du Soleil extravaganza, which you will need to book in advance as it can sell out at peak times.