Luxury real estate: The best addresses in Europe’s top cities

With Europe still at the forefront of UNHWI real estate investments, property prices in the best streets of the best European cities have defied the Great Recession and remain well into the tens of thousands of dollars per square foot. So what are the Old Continent’s most prestigious addresses, where the global elites converge to buy trophy homes and captains of industry rub shoulders with royalty? Discover it in my gallery for Forbes.com.