Weekend home for art collectors designed by Ai Weiwei and HHF Architects. Our goal was to create a farm landscape that looked like it had always been there, redolent of Hudson Valley orchards and grazing land. To do this, we imported an ancient apple orchard from a few miles away, added tons of soil to create rolling hills near the house (where the land had previously fell away), cut meadows, and planted a spectacular forest periphery of birch, low sumac, and seasonal wildflowers.