അതിർത്തി രേഖകൾ	രാജ്യങ്ങൾ
Durand Line	Pakistan - Afghanistan
Hindenburg Line	Germany - Poland
Mason-Dixon Line	Demarcation between four states in the United State.
Marginal Line	Russia - Finland
Macmahon Line	India - China
Medicine Line	Canada - United States.
Order-Neisse Line	Poland and Germany
Radcliffe Line	India - Pakistan.
17th Parallel	North Vietnam and South Vietnam
24th Parallel	The line which Pakistan claims for demarcation between India and Pakistan. This, however, is not recognized by India
26th Parallel	A circle of latitude which crosses through Africa, Australia and South America.
38th Parallel	The parallel of latitude which separates North Korea and South Korea.
49th Parallel	boundary between USA and Canada.