Which are the main tourist attractions in Denmark?

Answer 1

There are many tourist attractions in Denmark, again you have to be specific with what you want to see. See list below:
Bon Bon Land
Legoland
Copenhagen Zoo
Nationalmuseet
Den Gamle By
Tivoli
Egeskov Castle
Ny Carlsberg Glyptotek
Arken
There are many more....

Answer 2

Also Hans Christian Andersen's birth home in Odense