If only the walls of Ruins Under Christiansborg Castle could talk! But as they can't, check if tours are available to hear a few of its fascinating tales instead.
It won't take too long for you to discover why this fortified complex is a hit with tourists to Slotsholmen. Pay the admission fee and then explore it at your leisure. If you're searching for more fun sightseeing adventures, Tivoli Gardens, Stroeget and Nyhavn aren't too far from Ruins Under Christiansborg Castle.