The evolution of the field of the theatre from greek antiquity since nowadays has been constant, both in artistic and building terms. I am mostly interested in the era when theatres ceased to be the only buildings to accommodate plays.Through this dissertation I study places where theatre was performed after it exited the halls. This study has two parts: the first one concentrates on conventional spaces which were transformed into theatres, while the second one focuses on a wider range of experimentations of the theatre (street theatre or various performances). Then I analyze specific examples of spaces while comparing them.The objective of this dissertation is to prove that this phenomenon is a result of two things. Firstly, it was part of the natural evolution of theatre practice to seek for new spaces who would correspond better to its needs. Secondly, it was a result of the spaces themselves and their theatricality.