Originally, there were three outside stairways leading to the main floor.

They follow West to a giant power plant, and then up several flights of outside stairways.

Harry found an outside stairway and reached the second floor.

The outside stairway did not go all the way up to the top floor.

"Follow me," he said, taking us to a door that opened to an outside stairway.

Access to the hole is by an outside stairway built into the roof.

To the right, past an outside stairway, is the entrance to the dungeons they use.

He hurried up the long, graceful outside stairway to the balcony.

There's an outside stairway at the back of the house.

All the officers' quarters were accessed by an outside stairway.