Short Story recomendations

Hey. I thought that I would start this thread so that people on this forum could recommend each other short stories. So, if you want to, post the names of a few of your favorite short stories up here.

2 of mine are:

Welcome To the Monkey House-Vonnegut
In the Penal Colony-Kafka.

I've always liked Algernon Blackwood's A Victim of Higher Space.