On top of the $125 per hour photoshoots, the castle was once home to a personal zoo with "ponies, emus, camels, llamas, a donkey," the New York Post reported.
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The Chrismark Castle's TikTok page has over 300 thousand followers and six million likes. One video with over 50 thousand views shows "red flags in the castle," including the dungeon, a cage, and a mini tank on the property.
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The TikToks also show the castle's glamorous side, including parties with circus performers and pole dancers as well as a giant indoor hot tub.
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He later moved his then-pregnant girlfriend into the castle with her older daughter, but that relationship also ended and she took Mark to court over child support, per The New York Post.
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The one-of-a-kind property is "built to amaze and capture the imagination of the individual who relishes outstanding craftsmanship and superior design" and is "indeed fit for a King," the listing says.
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Additional reporting by Megan Willett.