Artist Christopher West is offering his next fantasy map set, Deep Vistas, via a Kickstarter project.
From his website:
These six “Deep Vistas” poster maps are all thematically linked around a fantasy adventure campaign set in the dark reaches below ground. Each one is 22 x 34 inches in size, created with a 1-inch grid built into the design for miniatures gameplay. My goal with these maps is to empower table-top gamers–roleplayers and miniatures gamers alike–to create a cohesive adventure and skirmish environment within these related locations.