Workers on Bridge Cables — Black

1920 × 1200

Railway Tracks — Black

2000 × 1311

Beachfront boardwalk in early 20th century

4000 × 3197

Titanic Ship at Dock — Black, Historical

1571 × 1600

Airplane assembly line

2600 × 1994

Man in Traditional Korean Attire

1200 × 960

Large Ocean Liner — Black, Industrial

1571 × 1192

Titanic at port

1536 × 1212

Women Working in Factory

1400 × 1044

Workers in Factory — Black

3000 × 2376

Factory workers at a machine shop

1029 × 1024

Factory workers at their stations

2200 × 1723