The independent town of Flensburg is home to a number of historical and cultural attractions, including the Flensburg Maritime Museum, the Flensburg Shipyard Museum, and the Flensburg Cathedral. Nordertor is one of the last remaining city gates in Flensburg. It was built in 1595 and is now a popular tourist destination. Volks Park is a large park with a variety of attractions, including a lake, a playground, and a miniature golf course. Mystery House - Flensburg is an optical illusion museum that will challenge your perception of reality.