Radley Sanitarium

Radley Sanitarium was a mental institution that treated both children and adults with mental illness. The Sanitarium and its employees were involved in several cover-ups, lies, and illegal treatments as well as illegal activity.

It was a key place and location during Season 3, Season 6, and appeared in flashbacks during Season 7. It has since been closed down and converted into a hotel called The Radley.

In the mid-season finale, "Game Over, Charles", the newly-revealed "A", Charlotte DiLaurentis (alias CeCe Drake), planned to bomb Radley with the assistance of Sara Harvey. Her plans fail, and she threatens to jump off the roof. After Alison pleads with her to stop, and with the police roaming the ground below, Charlotte jumps back onto the roof and says, "Game over", meaning her reign as "A" has ended.