yawninglily:

The midnight sun is a natural phenomenon occurring in summer months at latitudes north and nearby to the south of the Arctic Circle, and south and nearby to the north of the Antarctic Circle where the sun remains visible at the local midnight. Given fair weather, the sun is visible for a continuous 24 hours, mostly north of the Arctic Circle and south of the Antarctic Circle.

In Finland they have a Midnight Sun Film Festival, where they screen films 24 hours a day under a sun that refuses to set.  Kevin Murphy from MST3K wrote about attending the festival once, and I’ve been fascinated by the thought ever since I read of it.  As film festivals go, that one must be a one-of-a-kind.