Need suggestion for Doctor Who classic monster episodes

[Mikey]

Over the last few days as a build up to Halloween been watching Dr Who classic monster episodes

So far I watched ...

Brian of Morbius (Frankenstein)

State of Decay (Vampires)

Tooth and Claw (Werewolf)

Pyramids of Mars (Mummy)

any other suggestions to keep with the classic monster theme ?

[Grimm Jimm]

Terror of the Zygons...better late than never!