Johnsontown Tobacco Barn No. 2 - Credit: Wikimedia Commons
The Johnsontown Tobacco Barn No. 2 is a historic tobacco barn in Charles County, Maryland, near La Plata. The barn was built c. 1820, and provides evidence of early use of fire in the tobacco curing process. The framing of the barn is hand-hewn timbers secured by wooden pegs, with pit-sawn secondary framing members. The exterior is sheathed in vertical board siding, although there is evidence that it was originally sheathed in horizontal siding. Read more on Wikipedia
Source: en.wikipedia.org