Catwalk (noun)

1. A narrow platform or runway, elevated above the floor of a studio, theater, or other public space, used by models to display clothing or other merchandise during a fashion show.
2. A narrow walkway or bridge, typically with a guardrail, used to access or inspect an industrial or other structure.

Origin:

From the catwalks in a theater, used by stagehands to move scenery, which resemble a narrow walkway for cats.

Examples:

1. The models were so nervous as they walked down the catwalk for the first time.
2. The workers used the catwalk to inspect the bridge's support beams.
3. The catwalk was so high that it gave the models a great view of the audience.
4. The catwalk was built for safety and ease of access to the building's rooftop.
5. The catwalk was the perfect place to get a bird's-eye view of the entire factory floor.