This is from the John Pertwee era of Doctor Who, he and Tom Baker were my favourite Doctors. This story also features the brilliant Roger Delgardo as The Master and Katy Manning as The Doctor's companion Jo.
There's also a birdman and the lost city of Atlantis. This is from before the days of CGI, so the effects are a bit hit and miss. The acting though, as with other series from the same decade, like Blake's 7, is impressive..