The 812 rooms at Marriott's Bella Sky Copenhagen make it one of the largest hotels in Scandinavia, and the towering complex is the ultimate pit stop for business travelers who don't want to travel all the way into the city center. Located in the Orestaden district, it's next door to both the Bella Convention Center and the Royal Golf Course, meaning those who get bored with the pristine common areas and observation decks of the skyscrapers can take in a few rounds. Rooms are plush and mostly monochrome, with all the perks needed to get your work done, including lightning-fast free Wi-Fi and a multitude of charging ports.