Kastellet, located in Copenhagen, Denmark is one of the best preserved star fortresses in Northern Europe. It is constructed in the form of a pentagram with bastions at its corners. Kastellet was continuous with the ring of bastioned ramparts which used to encircle Copenhagen but of which only the ramparts of Christianshavn remain today.
The Kastellet is a working fort with a small garrison. There's a path around the top of the ramparts that makes for a good run.
Copenhagen's star fortress was built in the early 17th century. It features two gates, a Baroque Commander's House, a prison, a windmill, and a church. Today, many of the buildings are used as military barracks. Its history is interesting, but its grounds are the real reason to visit. Cross the moat to find green lawns, a trail along the ramparts, and great views of the city and the water. It's near the Little Mermaid and, best of all, it's free.
An historic fort and museum just north of the city centre, you will likely cross this sight as you make your way to the Little Mermaid. One of the nice things to do is walk around the elevated ramparts of the Fort which gives pleasant views over the surging buildings and sights. Be sure to check out the fountain in front of the Fort.
Fortress located out near the harbor where the famous Little Mermaid statue sits.
Nothing really special.There are rather better old buildings/castles/churches in copenhagen!
The King's gate of Kastellet, historic site of Copenhagen. It is constructed in the form of a pentagram with bastions at its corners.