Épisodes

  • The Little Albert Experiment | Marks Unexplained World Podcast (Ep. 187)
    Feb 21 2026

    The Little Albert Experiment | Marks Unexplained World Podcast (Ep. 187)

    The Little Albert Experiment by Watson and Rayner tested whether an infant could be classically conditioned to fear a neutral stimulus.

    By pairing a white rat with a loud noise, they induced fear that later generalized to similar furry objects, demonstrating learned emotional responses – but raising major ethical concerns by today’s standards.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

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    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

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    Credits...

    Photography by Helen Poolar

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    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

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    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

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    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

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    37 min
  • Who was Peter Bergmann? | Marks Unexplained World Podcast (Ep. 186)
    Feb 16 2026

    Who Was Peter Bergmann? | Marks Unexplained World Podcast (Ep. 186)

    The Peter Bergmann case pertains to the mysterious death of an unidentified man in County Sligo, Ireland, in the early hours of 16 June 2009.

    The man, using the alias "Peter Bergmann," had checked into the Sligo City Hotel on 12 June, where he stayed during the majority of his visit to Sligo.

    The man's movements were captured on CCTV throughout the town; however, the details of his actions and intentions remain unknown.

    His interactions with other people were limited, and little is known of his origins or the reason for his visit.

    The mystery is often compared to the Somerton Man case in Australia, in which an unidentified man was found dead on a beach shortly after the Second World War.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

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    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

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    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    Voir plus Voir moins
    38 min
  • Disappearance of Lars Mittank | Marks Unexplained World Podcast (Ep. 185)
    Feb 8 2026

    The Disappearance of Lars Mittank | Marks Unexplained World Podcast (Ep. 185)

    Lars Joachim Mittank (born 9 February 1986) is a German man who disappeared on 8 July 2014, near Varna Airport in Varna, Bulgaria.

    Mittank was on holiday at the Golden Sands resort, where he was supposedly involved in a fight and was unable to fly home with his friends for health reasons.

    Mittank was documented acting strangely while alone in Bulgaria. He called home to his mother, claiming that people were trying to kill him. On the day when he was supposed to fly home, Mittank went to the Varna Airport to consult with a doctor.

    He was later seen on airport security footage running out of the airport and towards an adjacent forest. He has never been seen since.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

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    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

    ---

    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    Voir plus Voir moins
    36 min
  • Aimee Betro (The Botched Contract Killer) | Marks Unexplained World Podcast (Ep. 184)
    Feb 1 2026

    Amiee Betro (The Botched Contract Killer) | Marks Unexplained World Podcast (Ep. 184)

    Aimee Jean Betro (born 27 August 1979) is a former American disc golfer, and criminal, convicted in the United Kingdom of attempting to carry out the contract killing of a shopkeeper in Birmingham in September 2019.

    After striking up an online relationship with one of her co-conspirators, Betro travelled from the US to the UK in August 2019, and disguised herself in a niqab in order to carry out the assassination.

    She attempted to shoot Sikander Ali at point-blank range, but her gun jammed, thus allowing him to escape.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

    ---

    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

    ---

    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    Voir plus Voir moins
    36 min
  • The Monster Study | Marks Unexplained World Podcast (Ep. 183)
    Jan 24 2026

    The Monster Study | Marks Unexplained World Podcast (Ep. 183)

    Listener Discretion Advised

    The Monster Study was a non-consensual experiment performed on 22 orphan children in Davenport, Iowa in 1939 about stuttering.

    The study was never published, and as a result was relatively unknown until a 2001 San Jose Mercury News article conducted by an investigative reporter, Jim Dyer.

    He revealed the details and followed up with the former test subjects who were still living – none of whom were told it was an experiment.

    A lawsuit took place and the seven test subjects from the "negative-reinforcement" group were awarded $925,000 by the State of Iowa for lifelong psychological and emotional scars.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

    ---

    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

    ---

    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    Voir plus Voir moins
    41 min
  • The Boy in the Box (Joseph Zarelli) | Marks Unexplained World Podcast (Ep. 182)
    Jan 17 2026

    The Boy in the Box (Joseph Zarelli) | Marks Unexplained World Podcast (Ep. 182)

    Contains Graphic Details

    Joseph Augustus Zarelli , previously known as the "Boy in the Box", "Boy in a Box" or "America's Unknown Child", was an American 4-year-old male whose nude, malnourished, and beaten body was found on the side of Susquehanna Road, in Philadelphia, Pennsylvania, on February 25, 1957.

    Zarelli appeared to have been cleaned and freshly groomed, with a recent haircut and trimmed fingernails, although he had suffered extensive physical attacks prior to his death, with multiple bruises on his body.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

    ---

    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

    ---

    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    Voir plus Voir moins
    39 min
  • What Happened to the Frog Boys? | Marks Unexplained World Podcast (Ep. 181)
    Jan 11 2026

    What Happened to the Frog Boys? | Marks Unexplained World Podcast (Ep. 181)

    The Frog Boys were a group of five boys who were murdered while trying to catch salamander eggs in Daegu.

    The incident attracted national attention, leading to a massive manhunt and extensive media coverage.

    The case remains one of South Korea's most infamous unsolved crimes.

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

    ---

    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

    ---

    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    Voir plus Voir moins
    38 min
  • The Jack Family Disappearance | Marks Unexplained World Podcast (Ep. 180)
    Jan 4 2026

    The Jack Family Disappearance | Marks Unexplained World Podcast (Ep. 180)

    The Jack family of Prince George, British Columbia, Canada, disappeared under mysterious circumstances on August 2, 1989.

    The Indigenous Canadian family were last seen stepping into a pickup truck belonging to an unidentified man who had reportedly offered the family jobs at a logging camp.

    The whereabouts of the family remain undetermined.

    An anonymous call in January 1996 claimed that their bodies were buried on a ranch, but the caller did not elaborate on the claim and efforts to track down the caller were unsuccessful.

    Missing People help lines:

    Missing People United States Namus

    Missing People United Kingdom

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    Marks Unexplained World

    Socials:

    Facebook: https://www.facebook.com/groups/755482988915649/

    Instagram: Mark Hughes (@mark_the_medium__) • Instagram photos and videos

    ---

    Podcast Description & Credits

    www.hauntedresearchcentre.com

    www.frightnights.co.uk

    ---

    Credits...

    Photography by Helen Poolar

    ---

    Marks Unexplained World background music:

    Music by Adi Goldstein - Blank Light

    Music from #Uppbeat (free for Creators!):

    https://uppbeat.io/t/adi-goldstein/blank-light

    License code: C6W9MMXFLSZUXLLO

    ---

    Paranormal Research Centre Promo:

    Music by Kevin MacLeod - Gathering Darkness

    Music from #Uppbeat (free for Creators!): https://uppbeat.io/t/kevin-macleod/gathering-darkness

    License code: ATHMPVKBDSRGQIUY

    ---

    Fright Nights Promo:

    Music by AK - Sky High

    Music from #Uppbeat (free for Creators): https://uppbeat.io/t/ak/sky-high

    License code: SMVBCSQXP5FFNVJT

    ---

    Voir plus Voir moins
    39 min