A unit in the late architect Zaha Hadid's One Thousand Museum condo tower in downtown Miami is up for an online auction to the highest bidder.

The 4,876-square-foot unit takes up half of the 36th floor at the 62-story tower on Biscayne Boulevard south of Interstate 395. The unit has four bedrooms, 6.5 bathrooms and is fully furnished with custom Italian pieces.

Hadid, the first woman to be awarded the Pritzker Architecture Prize, designed the 84-unit One Thousand Museum in her signature futuristic style using curved corners and meandering intertwined lines on the exterior. The tower completed last summer is sometimes referred to as The Scorpion.

The online auction of the unsold unit is set for May 27 on the Concierge Auctions LLC's online platform ConciergeAuctions.com. The company is based in New York and Austin, Texas.

Great Estates International Realty Inc. broker Sylvia Fragos in Aventura is cooperating with Concierge Auctions on the auction.

The auction sale format will reach a bigger pool of buyers and sets a timeline for seller and buyer to make definite plans, Fragos said in an email.

"It is a 60-day accelerated marketing system unique to the auction company that affords the seller a global reach and an incredibly-qualified database of buyers," Fragos added.

The unit will be sold to the highest bidder with no minimum offer required. Before the auction, the unit was on the market for $7.1 million.

Potential buyers will be able to bid remotely from anywhere in the world. Those interested also can do in-person tours or opt for virtual showings. ConciergeAuctions.com is offering 3D virtual showings, due diligence documents and an exclusive video of the unit.

The 707-foot tower in a canyon of downtown high rises has the only residential rooftop helipad  in Miami and 30,000 square feet of amenities. They include a sun deck and pool with poolside service, a 60th-floor indoor pool, gym and private sky lounge.

The unit for sale has floor-to-ceiling windows offering views of Biscayne Bay and South Beach, a master suite with two spa baths, enclosed steam showers and a standalone soaking tub.

The auction comes after two high-profile sales of One Thousand units closed during the coronavirus pandemic.

Retired British soccer star David Beckham and his wife, Victoria Beckham, bought a full-floor unit for $19.8 million in early April. David Beckham is part owner of the Major League Soccer team negotiating with Miami to build a soccer stadium and 1 million square feet of additional real estate at the city's Melreese golf course.

In late March, a penthouse sold for $13.8 million in the first resale of a One Thousand unit. The original sale last summer was for $12.76 million. The identity of the seller and buyer in the recent transaction has not been disclosed.

The tower at 1000 Biscayne Blvd. was developed by big-name real estate figures Louis Birdman, Gilberto Bomeny, Gregg Covin and Kevin Venge. It's Hadid's only residential tower in the Western Hemisphere.

Hadid, who was born in Iraq and studied in London, died in 2016 when the Miami tower was two years into being developed.