Musick that makes your momma sick, history (mediaeval and ancient in particular), art, occult, architecture.
Your Grandpa
Bluegrass;) ; Death & Black Metal; Hard Core; Grind; Goth; Industrial; Funeral Marches; Any other pretty fucked up stuff;) I kinda worship musick ov Turbonegro, Morbid Angel, Entombed, Slayer, Nine Inch Nails, Laibach, Carcass, Type O Negative, Cro-Mags, Motorhead, Godflesh, The Cure, Fields Of The Nephilim, Celtic Frost, Machine Head, Queens Of The Stone Age, Life Of Agony, Depeche Mode, Faith No More, Cathedral, Orange Goblin, The 69 Eyes, Darkthrone, Ministry, Danzig, The Cult, Electric Wizard, Paradise Lost, Kyuss, Fantomas, Behemoth, Dismember, Immortal, Pantera,The Sisters Of Mercy, Sepultura (with Max), Merauder, Vision Of Disorder, Sick Of It All, Satyricon, Neurosis, Tomahawk, Madball, Social Distortion, Vision Of Disorder, Mastodon, Bolt Thrower, Testament, Hatebreed, Suicidal Tendencies, Crowbar, Down, Vader, Deicide, Terrorizer, Napalm Death, Strapping Young Lad, etc., etc., etc.
Anything by David Lynch, Tim Burton, Coen Bros, Jim Jarmusch, Terry Gilliam, selected stuff from Tarantino and Guy Ritchie, plus whole bunch of gore/horror slashers.
Anung Um Rama, if you know what I mean.