The railroad apartment–a classic layout across New York City–isn’t everybody’s cup of tea. Not everyone wants to bypass a hallway to walk through a series of directly connected rooms, but in the case of this Park Slope co-op, each room is especially charming. The floor-through railroad occupies the third floor of 719 Carroll Street, a brick townhouse that’s been converted into a small eight-unit cooperative. At 80 feet long, the apartment is lined with prewar details that include a bay window, decorative fireplace, and some exposed brick. It last sold in 2009 for $625,000 before hitting the market at $975,000.