This Upper West Side co-op at 224 Riverside Drive would be a great deal on its own, with a spacious one-bedroom layout, totally renovated kitchen, and oversized windows that let in lots of sun and incredible Hudson River views. But add in these subtle steampunk touches–moody grey walls paired with whitewashed brick, vintage-style furnishings like a leather Chesterfield sofa and industrial lighting, and an all-black bathroom–and that $900,000 price tag seems like even more of a steal.