Irresistibly Viennese and very grand, this hotel has hosted everyone from the Queen to Mahatma Gandhi. The rooms have been designed by a French interior designer, preserving the historic features but giving a light and elegant finish. There’s a lovely, sunny terrace on the top floor, overlooking the city, an impeccable concierge service and elegant private rooms for dining and entertaining. There are two restaurants, the famous Blue Bar and a typically Viennese coffee room where you can enjoy the original sacher torte, a hotel speciality.