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Northern Water Tribe
Northern Air Temple
Western Air Temple
Ba Sing Se Zoo
Ba Sing Se
Abbey
Ruins of Taku / herbalist institute
Makapu Village
Pohuai Stronghold
Earth Nation village with port / market
Gaipan and abandoned treetop hideout nearby
Fire Nation colony
Seedy merchants pier
Fire Nation Capital
The Great Gates of Azulon
Black Cliffs
Fire Nation village, possibly near the Fire Nation facility for captive waterbenders
Fire Fountain City
Roku's island
Ember Island
Shu Jing, home to the legendary swordsman Piandao.
Jang Hui
Fire Nation village with a school that Aang secretly attended.
Crescent Island, with a demolished temple for Avatar Roku.
Great Divide
Senlin Village / Hei Bai's forest
General Fong's fortress
Mining village
Serpent's Pass
Wan Shi Tong's Library, now buried
Kolau Mountain Range
The Cave of Two Lovers
Omashu, formerly known as New Ozai
Foggy Swamp
Plains village
Tu Zin village
Chin Village
Gaoling
Kyoshi Island
Eastern Air Temple
Southern Air Temple
Southern Water Tribe
Whale Tail Island
Lake Laogai
Unnamed sea, defended by Hakoda's troops
Chameleon Bay
Ba Sing Se Outer Wall
Patola Mountain Range
Si Wong Desert, home to Si Wong Rock
Crystal Catacombs of Old Ba Sing Se
Aang's favorite place to ride hog monkeys (outdated)
Aang's favorite place to ride hopping llamas (outdated)
Aang's favorite place to surf on the backs of giant koi fish (outdated)
Sun Warriors' ancient city
The Boiling Rock
Fire Nation village, home to Yon Rha and his ill-tempered mother
Fire Nation Royal Palace
I am the manry-est of men!