the two bjarke ingels group-designed towers that comprise the XI, or ‘the eleventh’, have topped out in manhattan’s chelsea neighborhood. the 300-foot-tall (91m) east tower, known as ‘no. X’, will contain 87 residences as well as a hotel, while the 400-foot-tall (122m) west tower (‘no. I’) will contain a further 149 residences. located in close proximity to the high line, the project forms part of a new ‘architecture row’, which already includes projects by renzo piano, jean nouvel, and frank gehry.
