Sans Souci: An urban spa with cosmopolitan charm

When it comes to urban spas, the "Sans Souci" in Vienna's 7th district has been one of the city's most popular addresses for years. Open to hotel guests and locals, its 20-metre-long hotel pool – stylishly illuminated by Viabizzuno crystal chandeliers – allows patrons to swim their laps from seven in the morning onward. Afterward, you can work up a sweat in the hotel gym before relaxing in the saunas or the steam room. And the best thing is that the spa area is already included in the price of your stay - a real upgrade for any city trip.