If you decide to spend your vacation at a 4-star hotel in Copenhagen, you'll typically find plenty of amenities to make sure you're relaxed, such as a pool, gym and restaurant. You can experience high-quality service and upmarket surroundings. Pick a 5-star hotel and you'll have access to a few more bells and whistles — think on-site spas, 24-hour front desk and opulent turndown services. You'll most likely get more amenities and exclusive services at a 5-star stay, though both are fabulous options for luxury travelers.