Det finns en plats som heter Porphyry Knob i Amerika.
Alla platser i världen som heter "Porphyry Knob".
Riverside (46)
Centerville (43)
Fairview (40)
Midway (39)
Franklin (39)
Union (37)
Greenwood (37)
Marion (36)
Glendale (36)
Salem (36)
Liberty (35)
Fairfield (35)
Lincoln (35)
Pleasant Valley (35)
Georgetown (35)
Oakland (35)
Greenville (34)
Bethel (34)
Springfield (34)
Clinton (34)
Florence (34)
Arlington (34)
Kingston (33)
Clifton (33)
Milton (33)
Hamilton (33)
Newport (33)
Farmington (33)
Chester (33)
Glenwood (32)