This 20th-century palace, transformed into a luxurious boutique hotel, is nestled in the center of Croatia's capital, Zagreb. The trademarks of the era, high ceilings and loads of daylight, come coupled with modern outfitting and deluxe comfort in all 60 rooms. For a top-notch experience, consider staying in the unique presidential penthouse suite, with Zagreb's rooftops in the palm of your hand.