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Open since 1995, it's likely the first museum in an air raid shelter of Germany. In 26 rooms, each with a different thematic focus, it shows the history of the bunkers, the persecution and oppression by the National Socialists in the city of Emden from 1933 to 1945 and the post-war period up to the early 1950s.
Otto Waalkes' House
Shop and museum of the German actor and comedian Otto Waalkes. The house is an attraction itself, with Waalkes' "Ottifant"-character appearing to burst through the brick wall. See also the nearby traffic lights with the character on them.
Mini-dampfbahn
Just by the train station, behind the full size steam locomotive, there is a miniature steam engine railway that is open on Sundays. Even if it's closed, it is interesting to explore the tracks.
The village church steeple in Suurhusen used to be Guinness World Record holder for having the largest angle of unintentional tilt. It beat the Leaning Tower of Pisa by over a degree.