144 Duane Street in Tribeca has an interesting history behind it. The 150-year-old limestone building was originally used as a shoe factory and was later transformed into an insane single-family mansion. The 23,000-square-foot home was outfitted with a basketball court in the basement, a landscaped roof deck, and a crazy glass staircase. It hit the market in 2011, asking $45 million, and when a buyer never turned up it hit the rental market, asking $100,000 a month. It eventually sold in 2013 for $43 million, according to public records. The owner then converted the mansion into four rental apartments asking between $12,500 and $85,000 a month. Are you keeping track? This unit, a triplex penthouse, is the one asking $85,000, and it's just as insane as you'd expect it to be, with a massive 10,829-square-foot footprint, five bedrooms, and a crystal-like glass topper.
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