The Flatiron Building - with its unique triangular shape, narrow prow, ornamental columns and intricate decorative details - has been one of the most recognisable structures in New York City for more than a century. But for the last seven years, the Flatiron has been shrouded in scaffolding, its Beaux-Arts exterior hidden from throngs of tourists who came to view it. It has been undergoing a large-scale renovation, both internal and external, from an awkwardly laid-out office building into ultra-luxury apartments - with new units going for up to $58.5m (£43.9m). Only 21 residences currently on the public market or under contract in New York City are priced higher, with the top spot occupied by a $128m (£96.1m) condo off Central Park, according to data compiled by Manhattan Miami Real Estate. Now, with its transformation nearly complete, the Flatiron is ready for its next - and most extravagant - phase of life.