Hello - I am glad to discover this site, and especially, this forum. Can anyone help me ID the following three great stories that I read way back (I'm guessing 25 - 40 years ago)?
1. The narrator is a man who discovers that the apartment building that he lives in is really a space ship in disguise, apparently so that the aliens can kidnap a load of unsuspecting earthpeople at the proper time. He gets wise to the scheme at the end, if I remember right, by noticing one of the aliens, who appear to be normal humans (at least from the front!), looking at him with a third eye at the back of its head. As the roar of the rockets start, the narrator realizes his danger and runs out of the building. He then finally realizes the truth and speaks the unforgettable final words of the story: it wasn't just the building "...it was the whole [city] block", as he finds that he has not escaped, is still trapped, and is leaving earth forever, on a much bigger ship than he had imagined. "It's the whole block" has been for me a lifetime metaphor for suddenly realizing that something is an entire order of magnitude greater than originally thought.
2. In this story, three guys from earth land on an alien planet to investigate a city. The three crewmembers are (I think) the pilot/captain, the engineer, and (maybe?) an artist-type guy. On the way to the alien city, they see an interesting item on the ground, and each becomes fascinated with it, each with regards to his own specialty and interests. The engineer sees an incredible machine; the artist (?) sees a beautiful piece of art, etc. They get so engrossed that they never reach the city, and never realize that the city's inhabitants have purposely placed these devices (traps) around the city, in order to "catch" aliens (i.e., keep those annoying and inquisitive aliens -- humans, in this case -- away from their city).
3. I have the least memory of this third story. In it, a civilization is mechanized, and is completely self-perpetuating, with the machine intelligence completely capable of handling any changes that might occur by auto-repairing themselves. Almost capable, rather, since what happens is a temperature drop to near absolute zero. This is the one thing with which the electronic circuits cannot cope, since at this temperature, resistance (one of the essentials of electronics circuits) drops to zero. Sorry I do not remember more of this one; it is probably going to be a long shot.
Thanks for any suggestions and help on identifying these great old stories.