American Horror Story has now aired three seasons, each with their own distinct types of horror.

American Horror Story: Coven concluded on Wednesday with a new Supreme witch rising and the Academy blossoming with more witches than ever before. Coven was much lighter in tone than the previous two installments of American Horror Story, choosing to go for a more humor-based horror.

The lighter tone of Coven was the direct opposite of season 2's Asylum. The second season centered on an insane asylum set in the 1960s, with brutal torture and psychological manipulation throughout. Jessica Lange starred as Sister Jude, a sinister nun in the asylum who was eventually redeemed in the end.

The first season of American Horror Story, which has since been subtitled Murder House, focused on a haunted house in present-day Los Angeles. Murder House concerned itself with various horror tropes from the movies, including ghosts, numerous monsters and things that go bump in the night.

While American Horror Story has been a consistent ratings winner, some seasons are more popular with the audience than others. Murder House held a viewership slightly below three million per week while Asylum dipped lower to above two million viewers.

Coven has been the highest-rated season of the show, with episodes ranging between 3.5 million and 5.5 million viewers.

American Horror Story co-creator Ryan Murphy said that season 4 will be set in the 1950s, with Lange sporting a German accent. He also said that season 4 will have a lighter tone like Coven.

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American Horror Story season 4 premieres in fall 2014 on FX.