Wooden door with brass studs, close-up

Architectural detail, metal railing

Bridge seen from angle, silhouetted against sky.

California, San Francisco, Golden Gate Bridge

France, Paris, silhouette of Eiffel Tower, partial view

Paper plant, low angle partial view

Children on playground equipment

Stacks of metal rods, close-up

Scissors sticking in grass, close-up.

Two female friends standing face to face, holding hands, cropped view

California, San Francsico, section of Golden Gate Bridge with traffic

Teenage couple running on walkway

View of Maryland bridge.

"Metal gears, computer illustration. "

View of Maryland bridge in place.

Metal tap against a blue background.

Big cat rendered in metal, artwork

Silver sports car with orange background

An illustration looking down along a busy bridge

Antique Illustration of a View of a River with Bridge, "Tyolgé Bridge"

Metal tap and flowing water against a blue background.

Antique Illustration of a View of a River with Waterfall, "Cory-Lin, on the River Clyde" (Location: Scotland)

Metallic machine

Rusty metal flag of the United States Of America.

Metal bridge, partial view