Indoor/outdoor living with sweeping Hudson River and skyline views. Rarely available, Residence 21A at The Avery (100 Riverside Blvd) is a NE-facing corner 2BR/2BA with an extraordinary private wrap terrace—716 sq ft—outfitted with a brand-new Jacuzzi, landscaping, dining and lounge zones. Combined with 1,156 sq ft of refined interiors, you get 1,872 sq ft of seamless living and entertaining high...