New York City real estate is not usually a hotbed of fantasy, except the fantasy that you could afford that $20 million condo 50 stories up. But an unusual ad campaign for 15 Renwick St. in Hudson Square defied conventional thinking and focused on a group of characters that span through time. Just don't call them Stempunk. I talk with the teams at MARCH and IF Studio who dreamed them up, and Hana Alberts of the website Curbed. Learn more about your ad choices. Visit megaphone.fm/adchoices

Learn more about your ad choices. Visit megaphone.fm/adchoices