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The luxury hotel industry is a dazzling world. Anyone who considers himself a billionaire builds his own house (most recently Klaus-Michael Kühne is his "The Fontenay" in Hamburg), the very big houses outdo each other with the most magnificent infinity pools, the best restaurants and the most spectacular suites.
But what does it cost to stay in one of the most expensive suites? How many five-star hotels are there in Germany, and what does a night in a normal room cost on average? How many gold leafs do the luxury restaurants in Abu Dhabi's legendary Emirates Palace Hotel use each year, and what exactly does the turn-down service do?
How well do you know about luxury hotels? Test your knowledge here.