Massive penthouse at 53W53 hits the market with a $64 million price tag Robert Clark September 21, 2018 A sprawling 8,000 square foot duplex penthouse at 53W53 went on the market today.
Increasingly popular exoskeleton technique creates sturdy supertall skyscrapers Livabl August 5, 2015 The exoskeleton becomes a design feature as well as a cost-effective way to ensure stability.