Here are two new images of Zaha Hadid Architects' proposed 215-metre-high residential skyscraper for Miami.
The 60-storey One Thousand Museum tower will be located on Biscayne Boulevard in downtown Miami, overlooking the new Museum Park and Biscayne Bay.
The structure will feature a fluid concrete exoskeleton, rising out of the spa pools on top of the podium to a helipad and aquatic centre at the summit.
Apartments will cost between $5 million and $15 million, including duplex homes, half-floor residences, full-floor penthouses and one duplex penthouse right at the top.
Herzog & de Meuron are also working on a residential tower in the nearby Sunny Isles area of Miami and we featured the latest images of their design plus a movie from the developers last week.
Zaha Hadid Architects unveiled designs for a spiralling car park in Miami in 2011. More recent projects by the firm include plans for an apartment block that will be constructed beside New York's popular High Line park and an extension to the Serpentine Gallery in London.
Visualisations are by Catapult 13 Creative Studios.