This Extell-developed tower already has billionaire buyers in contract and a penthouse sold for more than $90 million. There will also be a Park Hyatt hotel within the building.

The owners of this building have been sprucing up the offices and retail space as new buildings start to fill the block, the Post explains.

A 50-story mixed-use tower, also from developer Extell, is in the works for this site. The building will be home to a seven-story Nordstrom opening in 2018.

a skinny 51-story tower here designed by Cetra/Ruddy. There will be 28 units, including a quadraplex.

Despite some neighborhood ambivalence, Bjarke Ingels' magic pyramid/PB&J sandwich is getting built at the far end of West 57th Street. It will have recycled water in the toilets and will pipe in outside air. We expect nothing less from Ingels, of course.

The Whole Foods here is already open, and the rest of the $500 mixed-use development is slowly following. The project will have two schools and 350 residential units (at last check, a mix of rentals and condos).

The plan for this site (once known as a neighborhood survivor) is a glassy, boxy thing designed by TPG Architecture. Part of the building will go to TD Bank, and the rest, probably, to design and furniture showrooms.