Bastions are a great set piece for a Dungeons & Dragons campaign ... If your players want to plot out a precise map showing where the windows are and the Feng-Shui of their bedroom, let them, but ...

Greyhawk is right smack dab in the middle of the new Dungeon Master's Guide. A gazetteer that models making your own world.

Seven Cursed Possessions can spawn at Camp Woodwind in Phasmophobia: Tarot Cards : On a picnic table near the front gate.