Sexuality, afterlife, odd phenomenas, human behaviour, traumas, mental illnesses, space, black holes, music, dreams...
Cthulhu, Poe, Lovecraft, any musician around the world, The Groke, The Hattifatteners, gods and angels, Edward Scissorhands, Jack Skellington, Jack Sparrow, The Grim Reaper...
If I tried to put here every band I liked, I would always forget one. But just to mention one or two: -The Sisters of Mercy -Type O Negative -Fields of the Nephilim -Cradle of Filth -Marilyn Manson -HIM -The 69 Eyes -Nightwish -Sonata Arctica -Rock legends like Black Sabbath, Iron Maiden, etc...
Star Wars, LotR, Stephen King -movies, Tim Burton(!) -movies... anything that includes horror, sci-fi, comedy, psychological odd behaviours... and it's nice to see movies handleing the subject "If world was like this" or "will become like this" or "we don't see everything around us".
... is almost useless. There's nothing to watch. Still, TV is good for watching videos and DVD:s.
Marquis De Sade: 120 days of sodom, old gothic horrorstories from Poe, Lovecraft, etc. Tim Burton's "The melancholy death of Oyster Boy". Nonfiction books like Kari Heusala's "Miehen seksuaalisuus" and "Naisen seksuaalisuus" ("Man's sexuality" and "Woman's sexuality") and books about psychological things; dreams, traumas, mental illnesses...
... are always temporary, so no need to mention anyone.