“When I first walked in—my God—I just felt, what Frankenstein monster have I created here?” said the Portland, Oregon-based collector and philanthropist Jordan Schnitzer. “It’s still overwhelming.” It was mid-February and Schnitzer was giving a tour of his collection, which, frankly, was gobsmacking. when left on my own to wander, it provoked spontaneous laughter—it felt almost unreal, almost farcical in its scale: an entire 50,000-square-foot warehouse filled with art.