Not a chimney

It’s not a chimney, it’s a shot tower. Built in 1799, it’s thought to be the oldest still standing in the world.

Molten lead was poured through a pierced sieve at the top of the tower, the droplets formed perfect spheres as they fell, and were cooled in a vat of water at the base.
Records show this one made lead shot for muskets in the Napoleonic wars. It finally stopped production in 2001, which is pretty impressive.