Old leather and pipesmoke mixed with old books too? You found my heaven!
Heaven for me is a castle library, filled with fine tobaccos, burning frankincense in swinging thuribles, lit by candelabras, stained glass windows to moonlight, as I have eternity to read the collected rarest works by all the great hands of history. The smell of burning leaves wafts in occasionally, and I sit amongst tapestries of history, drinking endless scotch.
This sounds like the closest thing I will get to finding heaven in a smell. Gotta add some Frankincense tho.
What amazes me even more is that there are choices amongst such a ridiculously niche smell and that I can get one that specifically smells not like a library but old books themselves. I love the internet!