The 5,067-square-foot unit comprises the entire ninth floor and offers a 360-degree view of Miami's ocean, shoreline, and cityscape. : A luxury penthouse in Miami was purchased for $22.5 million using cryptocurrency in what was considered to be the largest known cryptocurrency real estate purchase to date. The 5,067-square-foot unit comprises the entire ninth floor and offers a 360-degree view of Miami's ocean, shoreline, and cityscape. The transaction closed just weeks after the developer announced that it will be accepting digital assets as payment for its condominiums. Miami recently has billed itself as a growing hub for the cryptocurrency market.