 Part of Bremerhaven's port territory forms an exclave of the City of Bremen.The inner city lies on a Weser dune, which reaches a natural height of at Bremen Cathedral; its highest point, though, is and lies to the east at the "Polizeihaus", "Am Wall" 196.The highest natural feature in the city of Bremen is and lies in Friedehorst Park in the northwestern borough of Burglesum.