This quintessential brownstone apartment on the top floor at 140 West 74th Street might not be what comes to mind when you think of penthouse living, but 10-foot ceilings, tons of exposed brick, and plenty of pre-war charm–coupled with a perfect spot on the Upper West Side–could make this co-op studio a top choice for a Manhattan pied-a-terre. A price of $749,000 and the fact that it’s not a walk-up help make the case, as does the view of the tree-lined West 70s from a wall of windows.