Solitary volcanic mountains
Just as volcanic islands are specks of land in a great ocean of blue, solitary volcanoes on land can be equally spectacular. Mount Kilomanjaro is more famous, but perhaps the most cleanly isolated massif in Africa is Mount Elgon on the border of Uganda and Kenya, which rises almost a mile and a half above the surrounding plain.
However, the all time world champ cinder cone, a near-perfectly conical mountain, is Koryaksky in Kamchatka. It is 1000 meters shorter than Elgon, but it rises even higher, over 3000 meters above the surrounding plain.