Design for a double-curved staircase, consisting of an elevation on the upper half of the drawing and a plan view below. On the top portion of the design, a central straight staircase is shown ...

A spiral staircase made of concrete rises through the centre of an open-plan office designed by architecture studio Hildebrand in Steinhausen, Switzerland. Winding its way up the building's four ...

View full weather report. Summer Sale - Start Today for $1 - Expires 6/30/25. Exterior spiral staircases look stunning and save space in backyards. Updated: Mar. 19, 2011, 10:00 a.m.

Elevation and Plan View for a Spiral Staircase Cooper Hewitt, Smithsonian Design Museum. Click to open image viewer. CC0 Usage Conditions Apply Click for more information. ... Plans and designs of ...