The Woodford distillery is located in Versailles, Kentucky (7855 McCracken Pike Versailles, KY 40383-9781, to be exact) along the Bourbon Trail. It's also close to the Greatest Tradition in College Basketball in Lexington, Kentucky (damn, I already got off-topic). The grounds of the distillery are small and beautiful, built on a rolling landscape in the valley of a creek which I believe is called "Glenn's Creek." The main building is very modern with a gift shop, some historical exhibits and a tasting area (for after the tour!). Pretty much the rest of the facility is in its original shape, with a few modern touches and additions. Below left is the main building, and to the right is one of the aging buildings (they age the bourbon there, although I guess you could say the buildings themselves are aging as well) where you can see the old stone and the bars that were added to the windows around prohibition.
The barrels all weigh a different amount when they are taken out than when they are put in, because over approximately 7 years (on average) some product evaporates through the wood and out of the barrels; this is what you smell, a sweet, vanilla, oakey aroma which we call the "angels' share"