We keep seeing these along the roads in Oregon, and we still have no idea what they are. They’re usually placed at the end of a driveway, with the lower glass section facing toward the road. They look like they’re around 15 feet tall. Every time my wife sees one, she gets frustrated trying to figure it out. At first, we wondered: Is it some kind of lookout tower? A giant birdhouse? A wildlife feeder? It looks like there’s nothing inside, but there has to be a reason people build these. Does anyone know what this could be? Check out the discussion in the comments. 👇

As drivers approach a sharp curve along an unfamiliar road, they may notice a tall, narrow wooden tower standing beside a driveway. At first glance, the weathered beige structure may look like a decorative object, an old construction project, or a roadside curiosity. In reality, it serves a practical purpose: improving visibility and road safety. Known locally as a “driveway periscope,” the tower contains carefully positioned mirrors that reflect the view from around the blind corner, allowing drivers to see approaching vehicles before pulling onto the road.

The system works through the simple physics of light and reflection. Unlike modern safety devices, it requires no electricity, internet connection, sensors, batteries, or complicated maintenance. Mirrors placed at precise angles redirect the image of the road toward the driver, extending the visible line of sight and reducing uncertainty. This allows residents and visitors to make safer decisions when entering the road. The tower’s unusual appearance also has a psychological effect, naturally encouraging approaching drivers to slow down and proceed more cautiously.