Although this New York townhouse has an elevator, the oval staircase (above) is much more interesting. ... Simple Spiral. 2715 Shadow Canyon Rd, Diamond Bar CA For sale: $6,889,000.

Alex Chinneck's latest work sees the architectural artist reveal what he calls his most complex and ambitious sculpture to date: a spiral staircase that has a surreal twist and appears to be ...

A funky spiral staircase leads to the incredible rooftop deck of this single-story villa in Peru. ... Related: Crystalline Skylodge offers sky-high accommodations above Peru’s Sacred Valley ...