The Elgin and Winter Garden theatres are the last surviving stacked Edwardian theatres in the world. The theatres opened in 1913 as the flagship venue of Marcus Loew's theatre chain and were designed by Thomas W. Lamb. The ground-level Elgin Theatre is decorated in gold and marble with a domed roof while seven storeys above is the Winter Garden Theatre covered in plant murals, garden trellises, and columns designed like tree trunks. The upper theatre was closed in 1928 as the lower theatre was converted to show talkies, and the upper theatre remained closed until the building was acquired by the Ontario Heritage Foundation in 1981.
Vanya practices her violin on stage in an ornate theatre in episode 1x01 “We Only See Each Other at Weddings and Funerals”. Vanya performs her solo in front of a sold-out theater and her siblings arrive to try and stop her from destroying the world in episode 1x10 “The White Violin”.
Elisa goes into the movie theater under her apartment and finds the creature watching the film.
Source: Wikipedia
Source: IMDb