Cultural boundaries

surveyed border line between U.S. states of Delaware, Maryland, and Pennsylvania

limit of the influences of Latin culture and Greek culture

imaginary boundary line dividing China

thumb|The various definitions of the : 1) The Speyer line (green), 2) the river Main line as the frontier of Prussian hegemony before 1871 (red), 3) the 49° latitude (black). thumb| (white sausages with pretzel and sweet mustard) "''''''" (; ) is a humorous term describing the supposed cultural boundary separating Southern Germany from the northern parts, especially Bavaria from Central Germany.

geographical region also known as Central Nigeria

Linguistic and cultural boundary in Switzerland

geographic boundary

landform in the Netherland

French political movement