spiral staircase

noun

1. a staircase constructed around a central axis

Example Sentences

The video prominently features the mansion’s waterfall, 50-foot swimming pool and spiral staircase.

From Los Angeles Times

“We came up a spiral staircase right in front of the plaza in front of my apartment building, and boom,” he said.

From BBC

What remained of the two-story building on Sunday morning was its burned facade, a charred spiral staircase and oxygen cylinders covered in soot.

From New York Times

The sponge pulls this off via its spiral, ridged outer surface that functions like a spiral staircase.

From Science Daily

Jack found himself in a long passageway with multiple doors on either side, each of which he ignored for the time being, as at the end he saw a spiral staircase going down.

From Literature