It's a Sign: You have to decode these Denver billboards

Have you seen these billboards around Denver? We have, and a Next viewer named Nikki did, too. She snapped a photo of this one at Colfax and Franklin. Turns out it's an ad for the Children's Museum's new adventure forest climbing gym.
Published: 7:36 PM MDT June 17, 2019
Updated: 7:36 PM MDT June 17, 2019