I can’t republish the photo here because of copyright protections, but there’s a great photograph from 1898, showing the deconstruction of the DeKalb Courthouse built in 1843, on the Atlanta History Center’s online photo collection. The courthouse was replaced with the larger version we know today (though I believe the current building is the second iteration of that building, as the first was destroyed by fire).
Note that the building is clearly being dismantled with reuse of the materials in mind, instead of an outright demolition. Old school reuse!
Also of note: the gentleman waving on the roof.
h/t for the site: Pecanne Log