A spiral staircase (7) connects all the platforms.

A superb cast iron spiral staircase of which its origin dates from the Victorian era, around the year 1900.

One can see the beautiful spiral wooden staircase that leads upstairs from the reception.

Prices for Udacity's Nanodegrees are often more expensive than the course series of other providers.

At the center of the house, an architectural red metal spiral staircase acts like a pivot to the two principal axes.

Optima, a steel spiral staircase treated through liquid zinc immersion at 800°; this process makes the product resistant to atmospheric agents.

A spiral staircase connecting the outdoor terraces to the ground and the roof terraces will offer the occupants a rich architectural path punctuated by natural light piercing the surrounding forest cover.

Don't miss the double spiral staircase in the Burg, a castle complex built between 1438 and 1453 by Emperor Frederick III which is today inhabited by the government of Styria.

The invention concerns a self-supporting spiral stairway.

A spiral staircase (7) connects all the platforms.

Set of step elements for angular winding staircase, particularly for staircases with an external right angle.

DNA, which stands for deoxyribonucleic acid, resembles a long, spiraling ladder.

Spiral staircase kits are a great way to add a staircase to your home.

DNA, or Deoxyribonucleic acid, looks like a ladder.

Spiral staircase kits are a great way to add a staircase to your home.