The Legend of Zelda.
Although some locations are repeated (in name and theme) - the locations themselves are different in design. The lore tied to each game, overall story and cast, gameplay and music makes Zelda my favorite Action Adventure series.
Edit: The games I played in the series
The Legend of Zelda (NES): 72
The Legend of Zelda A Link To The Past (SNES): 91
The Legend of Zelda A Link To The Past (GBA): 92
The Legend of Zelda: Link's Awakening DX (3DS): 93
The Legend of Zelda Ocarina of Time 3D (3DS): 100
The Legend of Zelda Majora's Mask 3D (3DS): 97
The Legend of Zelda Twilight Princess (GCN): N/A
The Legend of Zelda Skyward Sword (Wii): 96
The Legend of Zelda A Link Between Worlds (3DS): 94
The Legend of Zelda Breath of the Wild (WiiU): 99
The Legend of Zelda: Four Swords Anniversary Edition (3DS): 78
The Legend of Zelda: Tri Force Heroes (3DS): 74
