I don't know if you can still get this (as in the original product), but I used to love the smell of creosote when I was a boy. Mum used to treat the garage with it, happy days!
You can still buy it but it is not legally available to DIYers. From memory, containers have to be no smaller than 25L and you are not legally allowed to use it on any wood that a child might come in to contact with.
I too love the smell, but only from a distance. I once painted about 60m of 6ft fencing with it on a hot day and felt awful the next day.