not pretty but functional chicken chunnel or tunnel from barn to free range areas to protect from predators. My worst predator is coyote, who hunts as soon as it begins to be grey - best thing is teach them to get inside before sunset
om sunlight and darkness of night can also be endowed under it. The place can then be used as a study room or even a dining room. The usage of pallets makes the place antique and attracts the visitors.