"Chances are you are still getting the best price at auction, " he says.

CNN: Deadbeat art buyers rise in China

Even if you've worked for some years trying to prevent the problems caused by tax havens, people will still ask you which places are the best in the world to shield your money from taxes.

FORBES

If frills are not your thing, but you still want one of the best hotels in town, consider the 5-star Hilton Frankfurt.

BBC: Business trip: Frankfurt