The ruined city of Oldport, destroyed nearly 200 years ago during a violent raid from the sea. During the day, a desolated skeleton of what once a thriving port city. During the night, magical splendor causes the city to regain its former glory and the dead rise to continue their lives.
The ruin that birthed a society; the Life and Times of a city in the throes of death.
11 great statues of lost gods being chipped away by the condemned.
When was the last time a character caught a cold or flu? Real people get them every now and again even with solid heating and dry interiors. Your characters are out in the cold and wet, and even inside is not always dry and warm. Imagine having to stop your dungeon crawl, sitting in a tight defensive position, while you all are feverish.