- 11073 1440x900 pipes, evening, decline
- 7877 1440x900 pipes, construction, metal
- 7439 1440x900 pipes, metal, metallic
- 4883 1440x900 pipes, neon, purple
- 4868 1440x900 pipes, metal, metallic
- 3038 1440x900 pipes, lines, texture
- 2739 1440x900 pipes, surface, relief
- 1761 1440x900 pipes, buildings, smoke
- 1103 1440x900 pipes, glare, colorful
- 42540 1440x900 shape, pipes, lines
- 23761 1440x900 gold, pipes, circles
- 2609 1440x900 silhouette, pipes, fog
- 2125 1440x900 roof, pipes, ceiling
- 24216 1440x900 structure, interlacing, pipes
- 9539 1440x900 shape, lines, pipes