I finally read The Call of Cthulhu the other week. Considering it's impact on culture, this was certainly overdue. I had read a collection of Lovecraft's short stories some year ago, but this one was not among them for some reason. Needless to say it was a fun read and the quickly building atmosphere still works today.
And while at the topic of century-old monster stories, I also read H. G. Wells' The War of the Worlds not long ago, with mixed feelings. It certainly has its moments and is propbably rightfully regarded as one of the most important works in science-fiction. But I found it tedious at times and too long for its own good, which is mostly due to its age, I guess.
Oh, one more monster: The Thing, the 1982 movie by John Carpenter, was quite entertaining! The gory practical effects hold up well enough and the atmosphere is intense. I think I never had seen this to the end before; if I don't misremember I started watching it in my late teens, but when it got to the scene in the dog cage I said "Nope! Not for me!" and turned it off before the monster reveal.