Ten construction machines: Tracked excavator, Bulldozer, Wheel loader, Backhoe loader, Motor grader, Road roller, Asphalt paver, Tower crane, Concrete mixer truck, Concrete pump truck. Real photographs of complete machines and their working attachments. The motor grader is a historical museum example. A separate roller stands beside the asphalt paver. A thematic selection, not a performance ranking. Photograph credits and modifications: File:Caterpillar 330 excavator on a pile of dirt.jpg: Matthew T Rader; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Caterpillar_330_excavator_on_a_pile_of_dirt.jpg; Scaled and letterboxed without cropping. File:Liebherr bulldozer-20240815-RM-171920.jpg: Reinhold Möller Ermell; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Liebherr_bulldozer-20240815-RM-171920.jpg; Scaled and letterboxed without cropping. File:CASE 321F Compact Wheel Loader, Windsor, Ontario, 2025-06-23.jpg: Crisco 1492; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:CASE_321F_Compact_Wheel_Loader,_Windsor,_Ontario,_2025-06-23.jpg; Scaled and letterboxed without cropping. File:Terex TLB 825 in Saint Petersburg.jpg: Dmitry Ivanov .; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Terex_TLB_825_in_Saint_Petersburg.jpg; Scaled and letterboxed without cropping. File:Caterpillar motor grader left AGSEM.jpg: Eric Polk; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Caterpillar_motor_grader_left_AGSEM.jpg; Scaled and letterboxed without cropping. File:Caterpillar CB54B roller on dirt lot in Campbell.jpg: Grendelkhan; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Caterpillar_CB54B_roller_on_dirt_lot_in_Campbell.jpg; Scaled and letterboxed without cropping. File:Vögele Super 1303-3i paver and asphalt roller (1).jpg: Peulle; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:V%C3%B6gele_Super_1303-3i_paver_and_asphalt_roller_(1).jpg; Scaled and letterboxed without cropping. File:Crane on Leeds Street, Liverpool.jpg: Rodhullandemu; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Crane_on_Leeds_Street,_Liverpool.jpg; Scaled and letterboxed without cropping. File:Clean concrete mixer truck.jpg: woodleywonderworks; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File:Clean_concrete_mixer_truck.jpg; Scaled and letterboxed without cropping. File:Concrete pump truck - Arlington, MA.jpg: Daderot; CC0; http://creativecommons.org/publicdomain/zero/1.0/deed.en; https://commons.wikimedia.org/wiki/File:Concrete_pump_truck_-_Arlington,_MA.jpg; Scaled and letterboxed without cropping. Adapted visuals and original contributions to this version are offered under CC BY-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0/. Source photographs retain their stated licenses; no ownership of the originals is claimed.