Just finished First Men in the Moon by H.G. Wells.
It's not in the same class as Time Machine or The Invisible Man, both of which cover wonderment and human psychology brilliantly, though in different proportions. First Men in the Moon starts off OK, but once Cavor and Bedford reach the Moon, the exploration lacks any real adventure, and the narrative pace slows to a crawl. The two main characters lack personality, and Bedford is actually a bit of an arse without good reason. The final part of the book, containing the messages from the Moonbound Cavor, are dull and add nothing to the narrative. The whole section comes across as an afterthought.
This is one of those rare occasions where the movie adaptation (1964 version), is superior to the novel, in story, characterisation and Victoriana charm. However, there is a tiny, throwaway part of the novel that's triggered an idea for a spin-off story, so I'm glad I finally got round to reading it.