Kronborg Castle

Built below sea level inside the walls of an old dry dock, with a children's area called the Dream Ship.

Run by the University of Copenhagen, with touch pools and tanks holding the sea life of the Øresund.

Halls of planes and bicycles, a space exhibition and a room of video games, plus Danish history built in miniature.

Three floors of free open workshops where kids 4 to 16 paint, draw and build, taking their ideas from the art in the galleries.

A sculpture park above the Sound with works by Calder and Henry Moore, and a children's wing of its own.

A Renaissance castle built across three islets in a lake, with an ornate chapel, the Great Hall and a formal Baroque garden beside it.