An interior staircase, which employees used as a shelter, collapsed causing four injuries.

The tower also included a secret interior staircase a source of great fun for his young sons.

While the castle's flooring has long since disappeared, its interior staircase to the upper storey may still be climbed.

A modern interior staircase gives access to higher levels.

The interior staircase includes heavy turned balusters and an oak handrail.