Boston Street
The Boston Street backlot was located on the Paramount Pictures lot before the studio fire on , which resulted in the destruction of most standing outdoor sets, and later the revamp of the studio facilities.

This backlot served as a filming location for the  episode , depicting the surface of Sigma Iotia II, more precisely the exteriors of Jojo Krako's headquarters and the surrounding city street. Filming took place on Tuesday . (These Are the Voyages: TOS Season Two, p. 494)
Filming locations