• 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

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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

    ---

    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

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    41 mins
  • 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

    Show More Show Less
    39 mins
  • 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

    Show More Show Less
    38 mins
  • 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

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    Show More Show Less
    39 mins
  • What Happened to the Clown that Cried? | Marks Unexplained World Podcast (Ep. 179)
    Dec 20 2025

    What Happened to the Clown that Cried? | Marks Unexplained World Podcast (Ep. 179)

    Contains distressing content regarding the Holocaust

    The Day the Clown Cried is an unfinished and unreleased 1972 Swedish-French drama film directed by and starring Jerry Lewis about a circus clown imprisoned in a Nazi concentration camp.

    The film has gained notoriety and mystique over the decades both for its controversial premise and as a well-known example of an unfinished film.

    Lewis repeatedly insisted that The Day the Clown Cried would never be released.

    Still, Lewis seemed to relish being the keeper of one of Hollywood's biggest mysteries, saying that, ...

    "The more I hear about it, the more I enjoy it.

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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

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    41 mins
  • The Great Smog of London | Marks Unexplained World Podcast (Ep. 178)
    Dec 13 2025

    The Great Smog of London | Marks Unexplained World Podcast (Ep. 178)

    The Great Smog of London, which occurred in December 1952, was a severe air pollution event that lasted from December 5 to December 9.

    It was caused by a combination of industrial pollution and high-pressure weather conditions, leading to a thick fog that blanketed the city.

    The smog resulted in approximately 12,000 deaths and had lasting health repercussions, ultimately paving the way for significant reforms such as the Clean Air Act of 1956.

    The event highlighted the dangers of air pollution and the need for regulatory measures to protect public health.

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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

    ---

    Show More Show Less
    38 mins
  • What Happened at New Mexico’s Dulce Base | Marks Unexplained World Podcast (Ep. 177)
    Dec 5 2025

    What Happened at New Mexico's Dulce Base | Marks Unexplained World Podcast (Ep. 177)

    For decades, ufologists have claimed that extraterrestrials experiment on humans with the military's help inside a secret base underneath Archuleta Mesa in Dulce, New Mexico.

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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

    ---

    Show More Show Less
    39 mins
  • The Crop Circle | Marks Unexplained World Podcast (Ep. 176)
    Nov 28 2025

    The Crop Circle | Marks Unexplained World Podcast (Ep. 176)

    A crop circle, crop formation, or corn circle is a pattern created by flattening a crop, usually a cereal.

    The term was first coined in the early 1980s. Although obscure natural causes or alien origins of crop circles are suggested by fringe theorists, there is no scientific evidence for such explanations, and all crop circles are consistent with human causation.

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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

    ---

    Show More Show Less
    41 mins