Dutch architecture firm OMA has updated the Saks Fifth Avenue department store in Manhattan with a glass escalator that appears multicoloured from different angles.
OMA's stair connects the ground, first and lower levels of Saks Fifth Avenue and creates a diamond-shaped atrium, with the first floor visible from the ground level.
The glass panels that form the escalator railings and balustrade of the stair are coated with an iridescent dichroic film. This means the glass changes colour when viewed from different angles in the flagship, located at 611 5th Avenue in Midtown Manhattan.

The escalator forms part of a wider overhaul of Saks Fifth Avenue ? which global architecture firm Gensler designed in collaboration with Saks' Store Planning and Design team ? and was added during the renovation and reconfiguration of the main level. This involved moving the beauty and jewellery departments to the floor above and introducing a handbag and leather goods area at grade. The latter is now triple the size of the original provision and intended to reinforce Saks' "position as a fashion authority with an exceptional offering".
Finishing the new interiors of this main floor are origami-like folded metal tables, and glass fixtures fitted with two-way mirrors for displaying products.

Floors are covered in custom terrazzo made in Italy, which is also used to form podiums for displays alongside white stone structures. Other details include a 600-square-foot (56-square-metre) are...