| Archaeology | Museum of London Archaeology Service 1998. | The Big Dig. Archaeology and the Jubilee Line Extension. |
| Archaeology | greece-now.org | Underground Battle. The Story of the Tug of War Between Archaeologists and Metro Developers over the Kerameikos Cemetery. 2001. |
| Archaeology | Dietmar, Carl; Marcus Trier | Mit der U-Bahn in die Römerzeit. Ein Handbuch zu den archäologischen Ausgrabungsstätten rund um den Bau der Nord-Süd-Stadtbahn. KiWi, 2006. (In German) |
| Archaeology | Hewson, Elisabeth | Zeitmaschine U-Bahn: Eine Reise durch Jahrtausende. Wiener Stadtwerke 1994. (In German) |
| Archaeology | Trier, Marcus; L. Tempel | Cologne's North-South Urban Light Railway. Part II - The Archaeology. Tunnel 7/2005. (PDF) |
| Architecture | agu.at | Architektengruppe U-Bahn, Wien. (In German) |
| Architecture | denkbahn.de | DenkBahn. Texts and audio guide about station architecture (In German) |
| Architecture | lowermanhattan.info | What Lies Beneath: The Architecture of the Subway. Article of 2002. |
| Architecture | Bongiorno, Biagia | Die Bahnhöfe der Berliner Hoch- und Untergrundbahn. Verkehrsdenkmale in Berlin. Petersberg, 2007. A detailed book about 81 metro stations that are preserved historical monuments. (In German) |
| Architecture | Fernandes, Fátima; Michele Cannatà | The Architecture of the Metro. Works and Projects in the Oporto Metropolitan Area. Civilização Editora, 2006. |
| Architecture | Frühauf, Anne | Die Bauwerke des Schienenverkehrs in Hamburg. Christians 1994. (In German) |
| Architecture | Hackelsberger, Christoph | U-Bahn-Architektur in München. Prestel 1997. (In German) |
| Architecture | Rauch, Jürgen | The Architecture of Underground Railway Stations. Krämer 1996. |
| Art | metrovias.com.ar | Galleries of stations and murals |
| Art | metrodecaracas.com.ve | Gallery of station photos showing some works of art |
| Art | metro.net | Los Angeles County Metro Art Department. |
| Art | metrolisboa.pt | Art in the metro. |
| Art | art-public.com | Art on the metro. CAID-ACVI-TAAC. |
| Art | Metropolitano de Lisboa, E.P., 1996. | Junction '96. Lisbon Worldwide Conference on Art and Public Transport (Proceedings). |
| Art | stib.be | When Art Takes the Metro. A journey through the largest underground art gallery in Brussels. stib.be. |
| Art project | subway-life.com | A curious art project with drawings of passengers of ten metro cities |
| Art project | photoblog.be | A weblog which collects photos of passengers and stations around the world |
| Art project | cinematicfilm.com | Hong Kong metro meets Paris metro. A cool experimental video |
| Art project | Lleó, Mónica | Point of Escape. Nice photos of empty stations (In Spanish) |
| Arts | Kamenev, Marina | Magic in the Metro. In: Business Week, November 2006. |
| Arts | Pereira, João Castel Branco | Public Art in Lisbon Underground. Metropolitano de Lisboa, 2000. |
| Arts | Ström, Marianne | Art Goes Underground - Decor at Subway Stations. In: UNESCO Courier, March 1992. |
| Arts | Ström, Marianne | Metro-Art in the Metro-Polis. ACR Edition (France) 1996. |
| Awards | terrapinn.com | Celebrating excellence in the global mass transit industry. |
| Benchmarking | comet-metros.org | Project for benchmarking and best practices of the world's largest metro networks |
| Benchmarking | nova-metros.org | Project for benchmarking and best practices of medium-sized metro networks |
| Best practices | quora.com | What are the best elements of subway systems and stations worldwide that should be considered for universal adoption?. |
| Design | absence-of-fear.de | Lighting in metro stations (In German) |
| Design | transit.toronto.on.ca | An Essay on Original Subway Station Design |
| Design | dougrose.co.uk | London's Underground Edwardian Tile Patterns. |
| Design | poslfit.com | Toronto Subway Station Tiles. Colours and Fonts. |
| Design | Landesgewerbeamt Baden-Württemberg 1983, Design Center Stuttgart. | Urbanes Design: Konzepte und Realisationen der Designergruppe Lindinger & Partner. (In German) |
| Design | Descouturelle, Frédéric et. al. | Le métropolitain d'Hector Guimard. Somogy 2003. (In French) |
| Design | Garn, Andrew | Subway Style: 100 Years of Architecture & Design in the New York City Subway. Stewart, Tabori & Chang 2004. |
| Design | Garn, Andrew et al. | Online Gallery Talk: Subway Style. |
| Design | Ovenden, Mark | London Underground by Design. Penguin 2013. |
| Design | Schiffler, Lothar | Europe's most beautiful metro stations. Photo exhibition of 2003 (In German) |
| Design | Seabrook, Kate | Endbahnhof. One aesthetic photo of every station in Berlin |
| Design | Stookey, Lee | Subway Ceramics: A History and Iconography. 1992. |
| Discussion board | ditiezu.com | Ditiezu. (In Chinese) |
| Driverless metros | metroautomation.org | Automated Metros in the World. UITP. |
| Express metros | skyscrapercity.com | Discussion |
| Fonts | Magalhães, Ricardo | Typography on the Subway: A Trip Around the World. Good article referencing Metrobits |
| Funicular metros | subways.net | |
| Graffiti | subwayoutlaws.com | History of subway writing and other aspects of subway graffiti |
| Graffiti | Cooper, Martha; Henry Chalfant | Subway Art. Thames & Hudson 1984. |
| History | cityrailtransit.com | A line-based list of the world's metro systems |
| History | forgotten-ny.com | Forgotten NY Subways. |
| History | Washington MATA 2001. | Metro at 25: Celebrating the Past, Building the Future. |
| History | nycsubway.org | The New York Subway: Its Construction and Equipment. IRT 1904. |
| History | Mecklenborg, Jake | Cincinnati's Abandoned Subway. |
| History | Stadler, Thomas | Otto-Wagner-Stationen. (In German) |
| Home design | subwaysigns.com | Decorative subway signs |
| Home design | moregeous.wordpress.com | A blog entry about subway tiles in home design |
| Logos | mukiryoku.com | Japanese railway and metro operators logo collection |
| Map | i.redd.it | Greater Bay Area Rail Transit Network 2021. |
| Map | liuzhongren at Ditiezu | Pearl River Delta Urban Railway Map, 2050. |
| Map design | kickdesign.com | Redesign project of 2004 by Kick Design for New York's subway map |
| Maps | fakeisthenewreal.org | Maps of 25 metros, presented on the same scale |
| Maps | radicalcartography.net | North American subways and light rails on the same scale |
| Maps | tubemap.com | Link collection for worldwide tube, subway and metro maps |
| Maps | s55.radikal.ru | Depths map of Moscow's metro |
| Maps | carto.metro.free.fr | Detailed maps of urbans transports. Track maps of French and other European systems. |
| Maps | ipodsubwaymaps.com | Downloadable subway maps for the Photo iPod. |
| Maps | exploremetro.com | ExploreMetro. Interactive maps and iPhone apps for Asian metro systems. |
| Maps | Cerovic, Jug | INAT Universal Graphic Language for Metro Mapping. Schematic metro maps for many cities |
| Maps | Ovenden, Mark | Metro Maps of the World, 2nd Edition. Capital Transport 2005. |
| Maps | Reynolds, Robert | people.reed.edu |
| Maps | Roberts, Maxwell J. | Underground Maps Unravelled, Explorations in Information Design. Maxwell J. Roberts, 2012. |
| Maps (Asian metros) | seacitymaps.com | |
| Monorails | monorails.org | Monorail Society describes all 45 transit monorails of the world |
| Monorails | Krischer, Reinhard | Alweg-Bahn. Technik, Geschichte und Zukunft der legendären Einschienenbahn. Transpress 2003. (In German) |
| Music | metrolandmusic.com | Metroland. A music band project dedicated to metros |
| Music | barong.com.br | Submundo. International busking in metros |
| Network design | Walker, Jarrett | Human Transit. Insightful blog by an international consultant in public transit network design and policy. |
| Noise in metros | Ruotolo, Francesco, et.al. | Multisensory Assessment of Acoustic Comfort Aboard Metros: a Virtual Reality Study. Wiley 2012. |
| Palaeontology | paleometro.ru | Palaeontology in Moscow's metro: fossils in wall and floor materials (In Russian) |
| Passenger rides | en.wikipedia.org | 20 busiest metro systems by annual passenger rides |
| Photography | 123d.de | 3-D panoramas of metros |
| Photography | absence-of-fear.de | Artistic photos of metro stations with discerning comments on design details (In German) |
| Photography | absence-of-fear.de | Photography permits - for which cities they are needed and how to get them (In German) |
| Photography | news.deviantart.com | Pictures from a Global Subway Photography Contest were sent to NYCTA as a protest against their photography ban |
| Photos | londonstation.com | Underground stations in hand-coloured photographs |
| Photos | beeflowers.com | The metro in photos and panorama photos |
| Photos | transitpics.com | Photos of subway stations |
| Photos | metrorama.free.fr | Panorama images of stations |
| Photos | planetepixel.com | The nicest stations in panorama images |
| Photos | knuttz.net | Photo gallery of Stockholm's cave stations. |
| Photos | faller_man | T-Bane Stasjon. Flickr. |
| Photos | Lee, Frank | flee.com Artistic photo essay in black and white |
| Projects | urbanrail.net | Metros planned or under construction |
| Projects | railway-technology.com | Metro and railway industry projects |
| Retro futurism | darkroastedblend.com | Retro-Future: Mind-Boggling Transportation. |
| Retro futurism | retro-futurismus.de | Retro-Futurismus.de - Ein Rückblick auf die Zukunft von gestern. |
| Retro futurism | lib.berkeley.edu | Transportation Futuristics. |
| Rolling stock | metroine.net | Metroine. Trains of 40 European cities in a book with excellent photographs. |
| Route finder | subwayworld.org | Mobile app for navigating many metro systems |
| Rubber tyred | Spinosa, Andrea | Metropolitane: ferro o gomma?. Analysis of rubber-tyred metro systems (scroll down the page to find the link) (In Italian) |
| Signage | thestandardsmanual.com | New York City Transit Authority Graphics Standards Manual. Unimark International New York 1970. New York typography and wayfinding |
| Signage | Grabar, Henry | Uncovering the First, Fascinating Rulebook for Subway Sign Design. About the Standards Manual |
| Simulator | world-of-subways.com | Realistic simulator software for the subways of New York and Berlin |
| Statistics | uitp.org | World Metro Figures 2018. UITP. |
| Track maps | Popov, Yuri | mrl.ucsb.edu Track maps of Russian and Eastern European metros |
| Typography | magtypo.cz | Prague Underground. TYPO Magazine 8 (2003). |
| Typography | Berry, John D. | Underground Typography. 23 March 2001. |
| Typography | Magalhães, Ricardo | Typography on the Subway: A Trip Around the World. 2018. |
| Typography | Shaw, Paul | Helvetica and the New York City Subway System. MIT Press 2011. |
| Video | youtube.com | The Flying Train, Germany, 1902. |
| Visions | stadtkreation.de | Imaginary cities with imaginary metro networks |
| Visions | lib.berkeley.edu | Transportation Futuristics: Visionary designs in transportation engineering. |
| Visions | en.wikipedia.org | Vactrains. Metros of the future might be maglev trains in air-less tunnels |
| Walk-through trains | Freemark, Yonah | When American transit agencies ignore the world’s move to open gangways. Detailed analysis on walk-through metro trains throughout the world |
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