Barns are usually designed to last for a very long time, sometimes they even reach up a century of more. In the town of Chase, Oconto City, WI a stone barn was built in 1903, the structure is the only known standing structure of its kind in the county and now under the protection of the State and National Register of Historic places.
A YouTube video shows that there's other structures around the field, like the farmhouse cellar they've unearthed, which was a part of a large farm. Check out the video on the link below.
Link: Chase Stone Barn - Archaeology of 1887 Farmhouse Cellar
