Dating denmark Køge
The former reservoir dates back to the 19th century, and is now being used as a spectacular setting for art exhibitions and events.
Tivoli is located just a few minutes walk from City Hall, and with the Copenhagen Central Station as its nearest neighbour it is very easy to get to.
Discover Copenhagen’s beautiful castles, fairy tale history, and fascinating museums, all of which are included with the Copenhagen Card.
With 79 top attractions to visit for free, you can enjoy your own sightseeing adventure!
Torben Dehn, a special consultant at the Danish Agency for Culture, said: "It’s really been a discovery that’s put Danish cultural heritage on the world map.
"Three of the other Viking ring fortresses are included in the ‘Viking Age Sites in Northern Europe’ tentative list for inclusion in UNESCO’s World Heritage Site list.