Nestled on a serene museum block of the Upper West Side, this sponsor unit is a delightful 1-bedroom, 1-bathroom retreat in a historic 1900 Brownstone walk-up. The apartment exudes charm with its original details, seamlessly blended with modern upgrades like a fully renovated kitchen featuring a washer/dryer and a pristine, brand-new bathroom. But the true gem of this home is its private outdoor s...