Star Trek TOS "The Devil in the Dark" Season 1 Episode 26.

A wide shot of the Pergium Production Station on Janus VI.

Star Trek TOS "Catspaw" Season 2 Episode 7.

A mysterious medieval castle on the planet Pyris VII.

Star Trek TOS "Metamorphosis" Season 2 Episode 9.

Zefram Cochrane's home he built when he was brought to this planet by the companion.

Star Trek TOS "By Any Other Name" Season 2 Episode 22.

An uncharted planet inhabited by human like aliens that lure the enterprise with a distress call.