Fallingwater in Mill Run, Pennsylvania

"The rigid planes of the cantilevered balconies are pure modernist forms inserted into the heart of the forest," Bruce Turner said. "Most importantly, however, the thing that solidified this building as my favorite of all time doesn't show up in any photos: the arrival sequence to the house. You arrive on a small country road, turn into the property, wind your way through the woods, and the house finally appears in the distance."

Turner is a freelance architect based in New Jersey.