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Hollywood….once upon a time…
Aquarius Theatre (Nickelodeon on Sunset)
Opened in 1938 as the Earl Carroll Theatre, this venue (6230 Sunset Blvd, Los Angeles 90028) was later known as the Moulin Rouge, the Hullabaloo, and the Kaleidoscope. In 1968, the club was redecorated with psychedelic art, renamed the Aquarius Theatre, and became the home of a long-running L.A. production of the Broadway musical Hair. More recently, it was known as Nickelodeon on Sunset, a stage facility that housed the West Coast production of live-action original series produced for Nickelodeon from 1997 to 2017.
https://www.discoverlosangeles.com/things-to-do/the-ultimate-guide-to-once-upon-a-time-in-hollywood-locations