I would personally recommend huge amusment park in Kopenhaga - Tivoli Park - which gives a lot of fun and is also beautiful garden. Besides beeing in the capital you should see Kastellet - Danish Fortress, and some castles: Rosenborg, Christiansborg and Frederiksberg. Also have a look at simply stunning Oresund Bridge that connects Denmark and Sweden. If you have some time visit Helsingor - Kronoborg castle situated by the sea is just amazing!

Legoland ofcourse!

Moens Klint, Frederiksborg (Hillerod), Kronborg Slot (Helsingor), Vikingeskibsmuseet (Roskilde).

Råbjerg Mile is a great place to be in denmark.

the most beautiful place in Denmark is an island called Bornholm. Fantastic nature. While being there it is a must to also visit the small island Christiansø. You can get there by boat from the cities Gudhjem and Allinge. It´s worth spending an afternoon on that.

The Copenhagen Towers American Football Team... :) But... the Little Mermaid is a nice spot on the water... Beautiful Bay Area... Ships and Sailboats... (might catch a few pirate boats :) The Nightlife.... the best. have fun!

If you show up in Denamrk again, remember to visit Helsingor (North Siejland). You will find there a beautiful castle Kronborg which is actually Hamlet's Castle. And what is more you can travel by ferry to old, big and quite pretty Swedish city - Helsingborg - which takes only 20 min and costs 50 DKK both ways.

Oeresund Bridge! Really impressing and good way to also visit Malmö :)

Thanks for the advise, I went, had a great time; visited 90 percent of what you guys recommended. thanks.

If you have time go to Aalbor and visit Jomfru Ane Gade.

In Odense the Hans Christian Andersen Museum. In Copenhagen, Tivoli, Christiania, "the Little Mermaid" and some other cool areas that you can discover if you bike or just walk around