This one-of-a-kind Cobblestone Craftsman-inspired home is set on 1.40 acres and is carved into a 1700s sandstone quarry. Originally known as Willow Knoll it was built for James Ellicot, the inventor of the air brake as a summer residence. This exceptional estate consists of both a main house plus a 1,000 square foot guest house. Boasting expansive river views, pastoral gardens and extensive stonework the property exudes a peaceful feeling - a retreat from the hustle and bustle of life. Both homes feature extensive and original details including hand-hewn benches, moldings, stone fireplaces, and surprise built-ins and cubbies. The extra-wide wrap-around porch with its grand arches was crafted to present the river views as if in a Hudson Valley water color painting, and is perfect for staying cool on a hot summer day. The floor plan is open with generously sized rooms, high ceilings, beautiful wood floors, and antique glass. The Chef's kitchen with its commercial grade stove, and thick marble counters opens onto the perfect breakfast room and butler's pantry with a great open gas fireplace. The primary bedroom is en suite and features a round window alcove which perfectly frames the river below as well as a domed ceiling. The sweetest guest house has been home to a variety of writers and actors including Game of Thrones' Peter Dinklage. The guest house is perfect for artists, writers, yoga or extra income. Equidistant to the Villages of Nyack and Piermont.