If your trip to Copenhagen is all booked but your itinerary is a little on the empty side, we can give you a few hints and tips.One glance at a postcard stand will tell you that a visit to Copenhagen is not complete without going to Tivoli Gardens. As the most well-known sight in the area, you might want to schedule more time here than just a brief stop.Discover the best that this place has to offer by adding City Hall Square and National Museum of Denmark to your travel schedule. If you've got an extra day handy, drop by Ny Carlsberg Glyptotek and Christiansborg Palace too.Stop by Copenhagen Opera House. It's one sight you'll usually find on most travelers' to-do lists. If you still have some space on your itinerary, Copenhagen Zoo and Parken Stadium will keep you on the go as well.