Formerly a high-class hotel that accommodated famous movie stars, the Church of Scientology Celebrity Centre International is nowadays a base for the Church of Scientology, some members of which live in it full-time. It is also a tourist sight with a restaurant inside.
The construction of the building began in the 1920s. Its owner, Elinor K. Ince, wished for it to be an apartment house for movie stars, maybe in memory of her deceased husband, Thomas H. Ince, who was a member of the film industry as well. The house itself is a replica of a 17th-century French castle.
The building can be entered as a part of a tour organized by the church. These tours may be a good way to learn more about scientology, you can even see the room of the religion's founder, Ron L. Hubbard. The surrounding grounds and gardens are open to visitors, too. However, taking photographs is strictly forbidden all over the premises.
Wikipedia https://en.wikipedia.org/wiki/Château_Élysée
Official Website http://www.scientology.cc/
Phone 323-960-3100
Address 5930 Franklin Avenue, Hollywood, CA 90028, USA
Coordinates 34°6'16.885" N -118°19'8.469" E