Ten bridges: Golden Gate Bridge, Tower Bridge, Brooklyn Bridge, Rialto Bridge, Ponte Vecchio, Charles Bridge, Sydney Harbour Bridge, Forth Bridge, The Iron Bridge, Khaju Bridge. A short introduction to arches, towers, cables, trusses and architectural details in real photographs. A thematic selection, not a ranking by size, safety or popularity. All ten photographs are from Wikimedia Commons. Credits and modifications: File:2010 Golden Gate Bridge.jpg: Steven Pavlov; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:2010_Golden_Gate_Bridge.jpg; Scaled and letterboxed without cropping. File:Tower Bridge seen from the south bank.jpg: Tristan Surtel; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Tower_Bridge_seen_from_the_south_bank.jpg; Scaled and letterboxed without cropping. File:Brooklyn Bridge Manhattan.jpg: Suiseiseki; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Brooklyn_Bridge_Manhattan.jpg; Scaled and letterboxed without cropping. File:Ponte di Rialto Venice 1.jpg: kallerna; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Ponte_di_Rialto_Venice_1.jpg; Scaled and letterboxed without cropping. File:Ponte Vecchio from Ponte alle Grazie.jpg: Ingo Mehling; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Ponte_Vecchio_from_Ponte_alle_Grazie.jpg; Scaled and letterboxed without cropping. File:Charles Bridge arches from the Vltava River 2.JPG: BrokenSphere; CC BY-SA 3.0; https://creativecommons.org/licenses/by-sa/3.0; https://commons.wikimedia.org/wiki/File:Charles_Bridge_arches_from_the_Vltava_River_2.JPG; Scaled and letterboxed without cropping. File:Sydney Harbour Bridge.jpg: Eustaquio Santimano from Singapore; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File:Sydney_Harbour_Bridge.jpg; Scaled and letterboxed without cropping. File:ForthRailwayBridge.jpg: Renata at English Wikipedia; Public domain; Public domain; https://commons.wikimedia.org/wiki/File:ForthRailwayBridge.jpg; Scaled and letterboxed without cropping. File:The Iron Bridge.jpg: Matt From London; CC BY 2.0; https://creativecommons.org/licenses/by/2.0; https://commons.wikimedia.org/wiki/File:The_Iron_Bridge.jpg; Scaled and letterboxed without cropping. File:Khaju Bridge, Isfahan 04.jpg: Bernard Gagnon; CC BY-SA 4.0; https://creativecommons.org/licenses/by-sa/4.0; https://commons.wikimedia.org/wiki/File:Khaju_Bridge,_Isfahan_04.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.