I really enjoyed StumbleUpon’s 136 Creepy Wikipedia Articles, but I felt like there was much more creepiness on wikipedia that needed to be documented. Warning: May not be safe for work or sanity.

http://en.wikipedia.org/wiki/Lamkin
http://en.wikipedia.org/wiki/Harry_Daghlian
http://en.wikipedia.org/wiki/Icelandic_Phallological_Museum
http://en.wikipedia.org/wiki/Neisseria_meningitidis
http://en.wikipedia.org/wiki/Escamoles
http://en.wikipedia.org/wiki/Black_Annis
http://en.wikipedia.org/wiki/The_Great_Red_Dragon_Paintings
http://en.wikipedia.org/wiki/Mustard_gas
http://en.wikipedia.org/wiki/Lycaon_%28Arcadia%29
http://en.wikipedia.org/wiki/Catacombe_dei_Cappuccini
http://en.wikipedia.org/wiki/Shirime
http://en.wikipedia.org/wiki/Filoviridae
http://en.wikipedia.org/wiki/Peter_Stubbe
http://en.wikipedia.org/wiki/Jersey_Shore_shark_attacks_of_1916
http://en.wikipedia.org/wiki/Casu_marzu
http://en.wikipedia.org/wiki/Yoshio_Kodaira
http://en.wikipedia.org/wiki/Lamia
http://en.wikipedia.org/wiki/Polybius_%28video_game%29
http://en.wikipedia.org/wiki/Wandering_Jew
http://en.wikipedia.org/wiki/William_Burke_and_William_Hare
http://en.wikipedia.org/wiki/Sarin_gas_attack_on_the_Tokyo_subway
http://en.wikipedia.org/wiki/Yara-ma-yha-who
http://en.wikipedia.org/wiki/Big_Crunch
http://en.wikipedia.org/wiki/Self-immolation
http://en.wikipedia.org/wiki/Bloody_Mary_%28folklore%29
http://en.wikipedia.org/wiki/Rod_Ferrell
http://en.wikipedia.org/wiki/La_Voisin
http://en.wikipedia.org/wiki/Dysaethesia_Aethiopica
http://en.wikipedia.org/wiki/The_Garden_of_Earthly_Delights
http://en.wikipedia.org/wiki/Nuckelavee
http://en.wikipedia.org/wiki/The_Juniper_Tree_%28fairy_tale%29
http://en.wikipedia.org/wiki/Sankebetsu_brown_bear_incident
http://en.wikipedia.org/wiki/The_Sick_Child
http://en.wikipedia.org/wiki/Matthew_of_Ajello
http://en.wikipedia.org/wiki/Bloody_Benders
http://en.wikipedia.org/wiki/Glasgow_smile
http://en.wikipedia.org/wiki/Kryziu_Kalnas
http://en.wikipedia.org/wiki/Black_Paintings
http://en.wikipedia.org/wiki/Sacculina
http://en.wikipedia.org/wiki/Mongolian_death_worm
http://en.wikipedia.org/wiki/Raynald_of_Ch%C3%A2tillon
http://en.wikipedia.org/wiki/Jatinga
http://en.wikipedia.org/wiki/H%C3%A1karl
http://en.wikipedia.org/wiki/Maria_Temryukovna
http://en.wikipedia.org/wiki/Post-mortem_photography
http://en.wikipedia.org/wiki/Grady_Stiles
http://en.wikipedia.org/wiki/Gangrene
http://en.wikipedia.org/wiki/Day_care_sex_abuse_hysteria
http://en.wikipedia.org/wiki/Lutefisk
http://en.wikipedia.org/wiki/Redcap
http://en.wikipedia.org/wiki/Leucochloridium_paradoxum
http://en.wikipedia.org/wiki/Gulag
http://en.wikipedia.org/wiki/Isla_de_Las_Munecas#Chinampas
http://en.wikipedia.org/wiki/Killer_in_the_backseat
http://en.wikipedia.org/wiki/Wendigo
http://en.wikipedia.org/wiki/Ero_Guro
http://en.wikipedia.org/wiki/Foday_Sankoh
http://en.wikipedia.org/wiki/Political_abuse_of_psychiatry_in_Russia
http://en.wikipedia.org/wiki/Heat_death_of_the_universe
http://en.wikipedia.org/wiki/Richard_Chase
http://en.wikipedia.org/wiki/The_Devil%27s_Chair_%28urban_legend%29
http://en.wikipedia.org/wiki/The_Tree_Man_of_Java
http://en.wikipedia.org/wiki/Donkeyskin
http://en.wikipedia.org/wiki/Judith_Beheading_Holofernes
http://en.wikipedia.org/wiki/Sawney_Bean
http://en.wikipedia.org/wiki/Toyol
http://en.wikipedia.org/wiki/Anorexia_mirabilis
http://en.wikipedia.org/wiki/Rogue_elephant_of_Aberdare_Forest
http://en.wikipedia.org/wiki/The_Monster_with_21_Faces
http://en.wikipedia.org/wiki/Infibulation
http://en.wikipedia.org/wiki/Histoire_de_l%27Inquisition_en_France
http://en.wikipedia.org/wiki/Daeodon
http://en.wikipedia.org/wiki/Marcel_Petiot
http://en.wikipedia.org/wiki/Black_dog_%28ghost%29
http://en.wikipedia.org/wiki/Hashima_Island
http://en.wikipedia.org/wiki/Wineville_Chicken_Coop_Murders
http://en.wikipedia.org/wiki/Trench_warfare
http://en.wikipedia.org/wiki/Mummies_of_Guanajuato
http://en.wikipedia.org/wiki/The_Crying_Boy
http://en.wikipedia.org/wiki/Lamashtu
http://en.wikipedia.org/wiki/Onchocerciasis
http://en.wikipedia.org/wiki/Sloth_bear_of_Mysore
http://en.wikipedia.org/wiki/Maria_Monk
http://en.wikipedia.org/wiki/Kuru_%28disease%29
http://en.wikipedia.org/wiki/Ectoplasm_%28paranormal%29
http://en.wikipedia.org/wiki/Candido_Godoi
http://en.wikipedia.org/wiki/Big_Lurch
http://en.wikipedia.org/wiki/The_Mass_of_Saint-S%C3%A9caire
http://en.wikipedia.org/wiki/Love_Rollercoaster
http://en.wikipedia.org/wiki/The_Nightmare
http://en.wikipedia.org/wiki/Parasitoid_wasp
http://en.wikipedia.org/wiki/Emerald_cockroach_wasp
http://en.wikipedia.org/wiki/Locked-in_syndrome
http://en.wikipedia.org/wiki/Namahage
http://en.wikipedia.org/wiki/Jean_Spangler
http://en.wikipedia.org/wiki/Gello
http://en.wikipedia.org/wiki/Mutter_Museum
http://en.wikipedia.org/wiki/Immurement
http://en.wikipedia.org/wiki/Rat_king_%28folklore%29
http://en.wikipedia.org/wiki/Rape_of_Nanking
http://en.wikipedia.org/wiki/Brain_eating_amoeba
http://en.wikipedia.org/wiki/Angel_hair_%28UFO%29
http://en.wikipedia.org/wiki/Wak_Wak
http://en.wikipedia.org/wiki/Murder_of_Shanda_Sharer
http://en.wikipedia.org/wiki/Glass_delusion
http://en.wikipedia.org/wiki/Balut_%28egg%29
http://en.wikipedia.org/wiki/Roland_Freisler
http://en.wikipedia.org/wiki/Explosive_decompression
http://en.wikipedia.org/wiki/Byford_Dolphin#Diving_bell_accident
http://en.wikipedia.org/wiki/Strigoi
http://en.wikipedia.org/wiki/Sada_Abe
http://en.wikipedia.org/wiki/Hanged,_drawn_and_quartered
http://en.wikipedia.org/wiki/Banshee
http://en.wikipedia.org/wiki/Wild_Hunt
http://en.wikipedia.org/wiki/Alp_%28folklore%29
http://en.wikipedia.org/wiki/Delphine_LaLaurie
http://en.wikipedia.org/wiki/Star_Jelly
http://en.wikipedia.org/wiki/White_Lady_%28ghost%29
http://en.wikipedia.org/wiki/Anencephaly
http://en.wikipedia.org/wiki/Vrykolakas
http://en.wikipedia.org/wiki/Lynching_of_Laura_and_Lawrence_Nelson
http://en.wikipedia.org/wiki/Blood_libel
http://en.wikipedia.org/wiki/Santa_Muerte
http://en.wikipedia.org/wiki/Fibrodysplasia_ossificans_progressiva
http://en.wikipedia.org/wiki/Workhouse
http://en.wikipedia.org/wiki/Porphyria
http://en.wikipedia.org/wiki/Hellingly_Hospital
http://en.wikipedia.org/wiki/Teke_Teke
http://en.wikipedia.org/wiki/Krampus
http://en.wikipedia.org/wiki/Actun_Tunichil_Muknal
http://en.wikipedia.org/wiki/Tsavo_man-eaters
http://en.wikipedia.org/wiki/Sudden_unexpected_death_syndrome
http://en.wikipedia.org/wiki/Popobawa
http://en.wikipedia.org/wiki/Slow_slicing
http://en.wikipedia.org/wiki/Nure-onna
http://en.wikipedia.org/wiki/Superman_curse
http://en.wikipedia.org/wiki/Rodney_Alcala
http://en.wikipedia.org/wiki/Beast_of_G%C3%A9vaudan
http://en.wikipedia.org/wiki/Triangle_Shirtwaist_Factory_fire
http://en.wikipedia.org/wiki/Leanan_s%C3%ADdhe
http://en.wikipedia.org/wiki/Grand_Guignol
http://en.wikipedia.org/wiki/Conomor
http://en.wikipedia.org/wiki/Eric_XIV
http://en.wikipedia.org/wiki/Gustave_%28crocodile%29
http://en.wikipedia.org/wiki/Loogaroo
http://en.wikipedia.org/wiki/Laurie_Dann
http://en.wikipedia.org/wiki/Prions
http://en.wikipedia.org/wiki/Nikolai_Dzhumagaliev
http://en.wikipedia.org/wiki/Pishtacos
http://en.wikipedia.org/wiki/Iroquois_Theatre_fire
http://en.wikipedia.org/wiki/Bell_Witch
http://en.wikipedia.org/wiki/Rogue_wave
http://en.wikipedia.org/wiki/Manananggal
http://en.wikipedia.org/wiki/Death_wail
http://en.wikipedia.org/wiki/Taman_Shud
http://en.wikipedia.org/wiki/Felix_Dzerzhinsky
http://en.wikipedia.org/wiki/Dancing_Plague_of_1518
http://en.wikipedia.org/wiki/Skinwalkers
http://en.wikipedia.org/wiki/Theresa_Knorr
http://en.wikipedia.org/wiki/Rabisu
http://en.wikipedia.org/wiki/Louis_Slotin
http://en.wikipedia.org/wiki/Bluebeard
http://en.wikipedia.org/wiki/Stendhal_syndrome
http://en.wikipedia.org/wiki/Will-o%27-the-wisp
http://en.wikipedia.org/wiki/Gamma-ray_burst
http://en.wikipedia.org/wiki/George_Jeffreys,_1st_Baron_Jeffreys
http://en.wikipedia.org/wiki/Akhkhazu
http://en.wikipedia.org/wiki/Tuskegee_syphilis_experiment
http://en.wikipedia.org/wiki/La_Llorona
http://en.wikipedia.org/wiki/Jerusalem_syndrome
http://en.wikipedia.org/wiki/Pontianak_%28folklore%29
http://en.wikipedia.org/wiki/Venatio
http://en.wikipedia.org/wiki/Lyssa
http://en.wikipedia.org/wiki/Louis_Wain
http://en.wikipedia.org/wiki/Hanako-san
http://en.wikipedia.org/wiki/Gilles_Garnier
http://en.wikipedia.org/wiki/The_Hands_Resist_Him
http://en.wikipedia.org/wiki/Belle_Gunness
http://en.wikipedia.org/wiki/Mucocutaneous_leishmaniasis
http://en.wikipedia.org/wiki/Tantalus
http://en.wikipedia.org/wiki/Elyse_Pahler
http://en.wikipedia.org/wiki/Toba_catastrophe_theory
http://en.wikipedia.org/wiki/Mare_%28folklore%29
http://en.wikipedia.org/wiki/Disembowelment
http://en.wikipedia.org/wiki/Fournier%27s_gangrene
http://en.wikipedia.org/wiki/White_Witch_%28of_Rose_Hall%29
http://en.wikipedia.org/wiki/Irene_%28empress%29
http://en.wikipedia.org/wiki/VX_gas
http://en.wikipedia.org/wiki/Anthony_Comstock