Mardan Palace (Antalya, Turkey)
Credit: Chris Jackson / Getty Images

Overlooking the shores of the Mediterranean with the Taurus mountains to its rear, the Mardan Palace is a breathtaking Vegas-style wonderland, the fantastical billion-dollar dream come true of its Azerbaijani oligarch founder. Beyond the opulently appointed Ottoman-themed rooms and white glove service, the marquee detail is the five-acre swimming pool – the largest on the Med – with a 90,000 gallon aquarium sunk right in the middle and a stunning Da Vinci bridge arcing overhead. [From $430/night;]